Unfortunately it looks like it comes down to who you believe again, but below is about the most impartial I can find (Not the BBC, Guardian, Daily Mail, or Express)
The EU has threatened to limit its exports of vaccines produced within their borders after AstraZeneca said it would be unable to meet its promised delivery. | ITV National News
www.itv.com
They haven't even approved it yet, and the UK had an agreement in place three months before they did. Considering how we have handled the virus being a complete shambles, it is impressive that we have done this and I think there is a little bit of bitterness from the EU. That last bit is my personal opinion of course, but the EU certainly don't come out of this looking good, and people that try to defend them are losing credibility at this point.