My contract will end in May/June and I have no need for my extra retainers anymore. Obviously this amount was deducted in full amount but if I cancel retainers, does this mean they remain on my account and are inactive meaning I still pay for them until June or do I get prorated for the months I didn't use them for?

Also, when the time comes and I don't want to sub for another 6 month. How do I prevent this from happening? The wording in the mogstation is very confusing and I don't want to cancel my account and I don't want to suspend my account either. Do I just remove my credit card from the account?