Not at all. I generated a key for a win7, a visual studio and an office on the day that I got the account and that's it. I've been using the virtual machines on Azure though. Kept a Linux machine up and running all the time. But that didn't even eat half the monthly credit that comes with this type of MSDN.
Other things to note is that I received a couple of standard emails from Microsoft Reps welcoming me to Bizspark and asking me about feedback and if there's anything they can do to help me out with whatever troubles I may be having. But I completely ignored those emails.
Dear friends.. i think its not because of the seller.. 1 admin account can invite 4 more account. if any of it have issue with their account, all of them will be affected. Thats why i dont buy invite account. too risky for me.. I prefer to have control on all account myself..

I believed in your case, one of the account related to yours have issue and microsoft closed the account including yours..