# Recharge Vouchers Recharge vouchers add to the gamification element in the protocol and also serve as an incentivization mechanism for the users to upgrade their levels in order to avail of discounts on their recharge costs. Users can integrate the voucher with their glasses and enjoy a certain percentage of discount each time they recharge their glasses. --- # 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://documentation.script.tv/script-tokens/spay/mechanism-design-of-glasses/recharge-vouchers.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.