If you are a cryptocurrency exchange user, there is an option to make an online exchange directly on the exchange, such as Binance, WhiteBit, ByBit, and so on. However, firstly, not everyone keeps their coins on the exchange wallets because it's not very secure (the exchange always owns your money and your keys). And secondly, unfortunately, there is a chance of encountering scammers who use a scheme with a third party-victim through fake purchases on OLX. If such a transaction goes through your Privat24, you may face serious problems with law enforcement, even if "you didn't know."