They work, but at least AZ is working hard to NOT deliver vaccines to EU. (and sending those manufactured in EU to the UK).

Remember when Italians found 15M vaccines at the factory? I don't know why AZ representatives aren't prosecuted for such behavior of the company.

So I think it is a good call to wait for the contract to end.

BTW. Work at ~72%, mRNAs are at ~91%. What would you choose if you had both at the table? And what would you choose if you have the 91% at the table and 72% one in the other room?