# Billing ### What payment methods do you accept? Transactions are handled by Paddle.com. You can safely purchase HurryTimer Pro with your PayPal account, or with a credit card. ### Can I upgrade to another plan later? and how much should I pay? Yes you can! and you only pay difference in price. Ready to upgrade? contact us at ### How is VAT handled? VAT is calculated at checkout based on your location. ### How do I download an invoice? Your invoice is sent automatically by email after purchase. ### Do you offer refunds? If you’re unhappy with your purchase, no worries, we offer a 14-days money-back guarantee. contact us at or live chat with us [here](http://hurrytimer.com?livechat) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.hurrytimer.com/getting-started/billing.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.