Refund Policy
Effective date: July 18, 2026
30-day money-back guarantee
If you are not satisfied with your subscription to Dynamica Thermal Science, you may request a full refund within 30 days of your order date. This applies to any first payment for a paid plan (Student, Pro, or Team). Renewals and subsequent billing cycles are eligible for pro-rated refunds at our discretion when a fault of the Service is confirmed.
Free trials
Our Pro plan includes a free trial that does not require a credit card. Because no charge is made during the trial, no refund is needed — simply cancel from Account → Subscription before the trial ends. If the trial ends and Pro begins billing, the standard 30-day money-back guarantee above applies to that first paid invoice.
How to request a refund
Our order process and refunds are handled by our online reseller and Merchant of Record, Paddle.com. To request a refund:
- Visit paddle.net and locate your order using the email you used at checkout, or
- Email us at support@dynamicathermalscience.com with your order reference and we will coordinate with Paddle on your behalf.
Refunds are returned to your original payment method. Processing time is typically 5–10 business days depending on your bank or card issuer.
Cancellations
You may cancel your subscription at any time from your account settings or via the Paddle customer portal. Cancellation stops future billing; you retain access to paid features until the end of the current billing period. Cancelling is not the same as requesting a refund — if you also want your most recent payment returned, request a refund within the 30-day window.
Non-refundable items
The following are outside the standard money-back guarantee, though we will consider them case-by-case:
- Custom consulting engagements or paid workshops covered by a separate statement of work.
- Charges from previous billing cycles more than 30 days old.
- Accounts terminated by us for breach of the Terms & Conditions.
Consumer rights
Nothing in this policy limits any statutory right you have as a consumer under the laws of your jurisdiction (including, for consumers in Brazil, the Consumer Protection Code — Law 8.078/1990, and for consumers in the EU/UK, applicable distance-selling and consumer-rights laws).
Contact
Rafael Goncalves Dias Netto Servicos de Engenharia Ltda.
Email: support@dynamicathermalscience.com