Problems changing storage plan

i was using a 5 GB plan and I was fine with it. I was going to upgrade to the 50 GB plan but I was still thinking about it. Today I was going to the change plan page and accidentally pressed the 200 GB plan and it took money out of my account. I downgraded from the 200Gb plan but when go to iCloud it still says that I have 200 gb. What should I do? I am not sure if the plan is cancels or not and I don’t know if apple is going to take money out of my account in a month.