Some merchants send transactions with a small amount containing codes within the descriptor, so they can protect clients from fraudsters that do not have ownership of the real card. With that verification, only the individual(s) that hold the card will see the transactions and will be able to provide the code to prove that they manage that card.
If a merchant requests for you to provide the verification code after associating your card to the platform, just follow the steps below:
Login to your Dash.fi account
Click on the “Transactions” tab
The code will be in the “Descriptor” column, with the transaction amount usually being around $1
If you have a lot of transactions, you can use filters to show less. (Ex: filtering by the last 4 digits of the card you associated with the platform)