It's important to note that the amount of crypto you will receive is determined by the exchange rate when the payment is received in our account, not when the transaction was initiated. The faster a transfer is finalized, the better chance a user has of receiving the same desirable rate they noticed when first starting their purchase.
It's important to note that the blockchain environment does tend to be volatile, putting an increased level of responsibility on users when it comes to quickly completing their transfers.
Please note that the rate of an asset can also be affected by slower payment methods, such as manual bank transfers, where the rate can change based on the processing speed of a chosen payment method.