1. Overview

This Return and Refund Policy applies to purchases of calculation packages for the LEDLITY Toroidal Inductor Calculator.

LEDLITY is operated by:

Paid LEDLITY calculation packages are digital products and are processed through Paddle, our authorized online reseller and Merchant of Record. No physical product is shipped.

2. Free Calculations Before Purchase

Eligible new LEDLITY accounts currently receive three (3) complimentary calculations before any purchase is required.

These free calculations are intended to allow users to evaluate the functionality, engineering workflow, calculation results, and general suitability of LEDLITY before purchasing a paid calculation package.

Complimentary calculations have no cash value and are not eligible for refunds.

3. Our 30-Day Money-Back Guarantee

In addition to any mandatory rights you may have under applicable law, we offer a voluntary 30-day money-back guarantee for eligible purchases of LEDLITY calculation packages.

You may request a full refund within thirty (30) calendar days from the date of purchase if:

• the refund request is made within 30 calendar days of the relevant purchase;
• no more than three (3) paid calculations from the purchased package have been consumed; and
• there is no reasonable evidence of fraud, repeated refund abuse, manipulation, or other misuse of the refund policy.

If more than three (3) paid calculations from the relevant package have been consumed, the purchase will normally no longer qualify for our voluntary 30-day money-back guarantee.

This usage limit applies only to our voluntary money-back guarantee. It does not limit any statutory or other mandatory consumer rights that cannot lawfully be restricted.

4. What Counts as a Used Calculation

A paid calculation is considered consumed when the LEDLITY system successfully processes a calculation that, under the rules of the Service, deducts one calculation from the user’s paid calculation entitlement.

Free or promotional calculations that are separately identified as such do not count toward the three-calculation limit for a refund of a paid package.

Our system records calculation entitlement grants and consumption for purposes including account operation, fulfilment, security, and verification of refund eligibility.

5. Effect of an Approved Refund

If a full refund of a calculation package is approved, all unused calculations granted by that refunded purchase will be removed from the relevant LEDLITY account.

Calculations that originated from another valid purchase or from a separate free or promotional entitlement are not intended to be removed merely because a different transaction is refunded.

After the refund has been completed, the refunded transaction no longer provides any continuing calculation entitlement.

6. Multiple Purchases

Refund eligibility is assessed in relation to the specific transaction for which a refund is requested.

If you have purchased more than one calculation package, the existence of another valid purchase does not by itself prevent you from requesting a refund for an eligible transaction.

We may use transaction and calculation-entitlement records to determine which calculations were granted by and consumed from the relevant purchase.

7. Refund Abuse and Repeated Refund Requests

The 30-day money-back guarantee is intended to provide a fair opportunity to evaluate the paid Service. It is not intended to provide repeated periods of free use.

We may decline to support a claim under our voluntary money-back guarantee where there is reasonable evidence of refund abuse, including repeated purchasing and refunding of calculation packages for the purpose of obtaining continued use without payment, manipulation of accounts or calculation entitlements, fraud, or other abusive behavior.

This section does not restrict rights or remedies that cannot lawfully be excluded under applicable consumer protection law.

8. Technical Problems or Product Defects

The three-calculation limit in our voluntary money-back guarantee does not replace your rights where the purchased Service has a material technical defect, is materially not as described, or cannot be accessed or used as promised.

If you experience a technical problem, please contact us first at office@esta.rs and provide sufficient information for us to investigate the issue.

Where reasonably possible, we will attempt to diagnose and resolve the problem. If a material problem cannot be resolved, refund rights will be handled in accordance with applicable law, Paddle’s applicable refund rules, and the circumstances of the transaction.

9. Mandatory Consumer Rights

Nothing in this Return and Refund Policy limits any mandatory withdrawal, cancellation, refund, or other consumer right available to you under applicable law.

Depending on your country of residence and the nature and timing of the transaction, additional statutory rights may apply.

Where mandatory consumer protection law provides greater rights than our voluntary refund policy, the mandatory legal rights will apply.

10. How to Request a Refund

Purchases of LEDLITY calculation packages are processed by Paddle as Merchant of Record. Refunds for those transactions are therefore processed through Paddle and not by direct repayment from ESTA to the buyer.

If you would like to request a refund, you may contact us at: office@esta.rs. Please include the email address associated with your LEDLITY account and, where available, sufficient information to identify the relevant Paddle transaction.

You may also request a refund through the support or transaction management options provided by Paddle, including the link provided in your Paddle transaction confirmation where available.

We may review the LEDLITY account and calculation-entitlement records associated with the transaction in order to confirm eligibility under our voluntary 30-day money-back guarantee.

11. Refund Processing

Approved refunds for Paddle transactions are processed by Paddle in accordance with its applicable procedures and policies.

Refunds are generally returned through the applicable payment method where possible. The time required for the refunded amount to appear may also depend on the payment method, bank, card issuer, or other payment provider.

We do not issue a separate direct payment to the customer for a transaction for which Paddle is the Merchant of Record.

12. Chargebacks and Payment Disputes

If you believe there is a problem with a purchase, we encourage you to contact us or Paddle before initiating a chargeback or payment dispute so that the matter can be investigated and, where appropriate, resolved.

Where a chargeback, payment reversal, suspected fraud, or similar dispute occurs, access to calculation entitlements associated with the disputed transaction may be suspended or adjusted while the matter is reviewed, subject to applicable law and Paddle’s procedures.

13. Changes to This Policy

We may update this Return and Refund Policy to reflect changes to the LEDLITY Service, calculation packages, Paddle procedures, applicable law, or our commercial policies.

The version applicable to a purchase will be determined according to the terms and legal requirements applicable to that transaction. The current version of this policy will be published on this page with its “Last updated” date.

Changes to this policy will not be used to remove mandatory consumer rights that apply to an existing transaction.

14. Contact

For questions about LEDLITY, calculation usage, or our voluntary money-back guarantee, contact: