Ok, They ARE HELPING.
I had $300 lost for over 2-3 days, and have been sending email to support,  posting on this form like everyone else here.
And they did get around to getting my funds though.

So this is not a scam, they really are getting payments though, but slowly and they obviously have some processing issues.
My payment, once it got lost or what not took about 3 days or so to get resolved. My problem was not the wrong MtGox address (with the extra letters) but just the stalled during transfer error, the one that says 'loading'.

anyway- Bitinstant DID finally get my money though. So they are trying to help.
Just wanted to spread some good news here along with all the grief!