Change of plan

I am trying to change my Adobe plan. My plan auto-renewed after my student discount and it is way too expensive. Every time I go to manage my plan I get the same message. We couldn't process your request. Please try again or contact support if the issue continues. I have tried multiple times over the past few days. It keeps saying the same thing. I have tried to ask for support in the chat box but the screen freezes and I cant type anything into the chat box. I have no other way to seek out any help. I don’t want to keep paying this rate and it is also too expensive to cancel my plan because it has just renewed. Please help, I really need to downgrade my plan.