All apps not allowing access even though I paid for it

Ever since i downloaded the Creative Cloud application, my whole MAC is running SOOO slow even though I still have more than half storage left with it downladed. And THEN when I paid for the all apps student services it showed that I didnt make a payment and I am on the free trial which is annoying because the money was pulled from my account. I want a refund. I needed this school but if I am going to be running into issues like this I will use something else.