> ## Documentation Index
> Fetch the complete documentation index at: https://voucherify-pw-further-tests.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Adjust Loyalty Card Balance

> This method adds or removes balance to an existing loyalty card that is assigned to a holder. The removal of points will consume the points that expire the soonest. 

 >🚧 Async Action
> 
> This is an async action. If you want to perform several add or remove loyalty card balance actions in a short time and their order matters, set up sufficient time-out between the calls.