And by the way to all those who post information about big transactions this isn't the case. The total was £1000 only and still if someone complains about you that you took their money and gave them nothing in return they are basically accusing you of committing fraud in which case they will most likely freeze your account and send back the money to the buyer unless you can prove that you did everything correctly and the fraud allegations are false.
The same applies for cash deposits, even that I read in places the person who deposits the money can attempt to get it back with claims he was forced to do it or was cheated etc.
Seems nothing is truly irreversible except cash and Bitcoin