> For the complete documentation index, see [llms.txt](https://docs.zerocollateral.eu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zerocollateral.eu/smart-contract/refund-request.md).

# Refund request

Each wallet that has requested a withdrawal is monitored and if the refund is not made within the expected number of periods then reminders will be sent in the form of NFT. 

The reminders will be eliminated as soon as the wallet reimburses the amounts due. 

Reminder NFTs are visible to any other contract and constitute an incentive to repay the liquidity withdrawn without paying any kind of collateral.