What Bitcoin wallet website or app did you use?
I think he is talking about a Bitcointalk account, not a Bitcoin wallet. He mentioned that his posts got deleted.
@Martin jack
You should move your topic to Meta. That is where issues like this go. At the bottom of the page you will notice Move topic. Click on it and select Meta on the list.
Regarding your account, put a link to the profile of your account. If your posts get deleted, you get PMs in your inbox informing you a post of yours got deleted. Did you get such PMs in the past? What did they say?
If you didn't get notifications about your posts being deleted, but they are still missing, there is a possibility that the threads you posted in were deleted. In that case all the posts in such threads are deleted as well and you don't get informed about it.
A 3rd possibility is that you posted in self-moderated threads and the original thread starters deleted your posts for whatever reason.
EDIT: While I was typing this, other users mentioned most of it.