Thanks, everyone for your comment.

I log in one of my other bitcoinwallet.com accounts that I sent funds to from the account in question. So, when I opened the account in question in a new tab from this other account, instead of it showing the page of the account rather it showed USER NOT FOUND.

I am really disturbed and frustrated by this. I have checked social media to see if I could contact anyone and complain about this problem but no one to complain to. I cannot use the web account in question to contact Support because logging in is impossible.

I am very restless because of my money in the account.

Once again, thanks for your comments.