There does seem to be a belief amongst politicians that shouting louder at companies, police raids on their premises and the like is the pressure required to get them off their fat arses and make more vaccines.
The reality, on the other hand, is that these people have been working flat out for 12 months to scale up this production in a way never thought to be remotely possible before.
Nobody who has the slightest passing knowledge of the subject is at all surprised that there have been some problems with supply. Indeed, it's little short of a miracle that Pfizer and AZ, and Moderna to a lesser extent, have delivered what they already have to UK and EU.