Is transportation part of tuition? Here it is paid by the school district. You probably should only need to pay for the after school program based on the guidelines for a pshara regarding playgroups, but this will depend on the exact case and what the school is doing with the staff from that program. The guidelines given regarding specific programs that are no longer offered was that parent would often not be responsible.
I was told not by a ruv but from someone that knows someone that has a friend that knows a ruv, that babysitting/playgroups are very different then schools,
everyone agrees that a service based company that didn't provide any service at all cant collect money for service they didn't provide, the question is what happens with people that are employed by you for a 10 month contract and you cant put them to work (in this case due to covid) its a machlokes and there for they came up with a pshara,
however after school program or bus drivers are employed by the school not by the parents it makes it more difficult to charge for services they didn't provide (not talking about feelings here),