My vote is that this is fake.
As somebody else has mentioned, the phone-call to book the escort did not seem right.
Secondly, she accepted the Euros. I know some agencies may accept Euros, but in that instance the Euro price would be fixed. It seemed she was expecting to be paid in £, and they negotiated the extra as he only had Euros. How many guys that match his demographic would have a load of Euros in the flat but not £? I think not many. And a prossie would be thinking the same thing.