Flash Exchange does not live up to its name at all. If you need a service for quick fiat to crypto exchanges, this option is not suitable. You have to wait 2-3 hours, while other exchanges handle the task in just a few minutes. They explain the delays by saying it's not their problem if the Bitcoin network takes a long time to confirm transactions. However, everyone knows that speed depends on the fee paid by the sender. It turns out that the exchange is just saving on fees, while I have to wait. With regular electronic money, there are no such problems; they have fixed percentages, and the process is instantaneous. For example, a transfer from Yandex Money to Qiwi costs about 2.5% for the service and 0.5% for Yandex Money's fee, so you end up losing 3% on the exchange. This is quite acceptable, and the transfer happens instantly. I see the notification of funds being credited, and the money immediately arrives in my wallet. The whole procedure takes just a few seconds, at most a minute. For such exchange directions, this method works perfectly.