Similar saga for me as well.
I got the premium card and received the standard Avios miles last week but not the bonus. I called Avios today who asked me to call LloydsTSB. The chap at Lloyds informed me that I may not be eligible for the bonus in view of previous Airmiles card but I disputed that it wasn't in the terms. He asked me to send an email to Avios but gave me a wrong address - I have sent an email to the address I got from MSE
[email protected]
I will let you know the outcome in due course.
Siva