2. did you ask them from a new account?
3. where did the btc move? dont you see that in the transaction history or block explorer?
4. possible breach of security? how secure were your password and seed?
5. why didnt you store your bitcoin in a wallet?
6. you can never trust a 3rd party long term with your money.
7. why did you take so long to log back into your old account?
8. did you have breakins into your home or computer that could explain the moving money?
1. No idea - id be extremely interested in an answer. When i gave them my email login they consistently said no record existed for approximately a year. Ths morning I could use my email to login.
2. No
3. Its been moved to a new address which ive explored with blockchain explorer but theres not much information there. I notice that on the same day 70 bitcons were moved there from someone elses account
4. Password was medium secure - I didnt have 2 factor authentication
5. I didnt have a wallet in 2013!
6. As i have just discovered

7. Ive been trying to log into it for over a year only to be told it doesnt exist
8. No breakins but ive got an old windows laptop that has been infected with malware on a couple of occasions