@mxxn69 - Hello:
There are no statistics available, as far as I know, on ticket wait times in Europe; judging from the posts of players like you who have lost access to their account because of hacking or other reasons, the wait time to recover one’s account is about 2 weeks.
For example, a poster on the Europe French-language forums lost his account on October 16 and got it back on October 28. Without proper statistics, it is difficult to say if this wait time is typical, fast or slow… but there are many statements from Blizzard that the waiting time “is longer than usual due to the high volume of tickets”.
You will need to be patient.