It is not a good way to respond to your customers, especially since you are in the stage of gaining trust, and whoever reads this thread will be interested in your first responses.
In this case, commentators are picking on minor details.
Fixed. We’re still working on the English version. Almost done.
If the funds are successfully verified, they will be returned to the client to the wallet from which the payment was made, but not earlier than after 7 business days. The service charges a commission of 1% from this transaction. If you doubt a transaction, and the user succeeds in proving the source of the money, why do you return it to the wallet after 7 days and a 1% discount? This can be acceptable in case the user refuses to comply with KYC.
About the time, it depends on the exchange as soon as the funds unlock we immediately return them to the client. As for 1% - our refund processing fee.
If the client prefers to recalculate the application at the current rate, then the exchange will continue without deducting this fee.
This practice is used in most exchangers.