A unique order number key instead of a letter of guarantee.
You do know the purpose of a Letter of Guarantee, right? It's so the user has hard evidence in case you don't deliver. A "unique number" proves nothing. I can think of only one reason for not providing one: it helps cover up a potential scam. If you have good intentions, why risk people thinking this way?
I totally agree with LoyceV here! The Letter of Guarantee is a thing for a reason. It's like a formal promise that someone will fulfill their part of the deal. It's pretty handy in situations where there's a lot of risk or uncertainty involved.
@PureMixerio, how do you expect your customers to prove their deposit in the event of a dispute? An order number key serves no purpose because it proves nothing and you can easily claim that it is fake.
We store information about INCOMPLETE transactions for 72 hours to assist users in case of need, and delete this information instantly after 72 hours
What happens if the transaction is not confirmed within 72 hours, which can very easily happen in the case of sending with a low transaction fee?