My advice is maybe look at anothe centre too if he has anxiety.
Also take him to a GP and get him to a psychologist to work on his behaviour. They can help you with strategies on what you can do to make him feel more independent etc.
Two days a week didn't work for my kids they had to go full time. Also my kids never ate at care I mean a few bites of this and that, there yoghurt. They were too busy playing!! Do u get reports? Our centre is on an APP. What centre worked for your other kids won't necessarily work for this child