A week ago, a Frenchman stole my account and also I didn't remember the date of birth given at registration. I found somewhere receipt, which I made the picture. I had my account after 6 hours. Try it. Other way is talking about your account at Live Chat. And CHANGE YOUR EMAIL PASSWORD! Also I can recommend Malwarebytes Anti-Malware program. He is doing this what your Anty Virus cannot. He will destroy all Trojans, Keyloggers etc. etc.
Hope I helped