If, as a high risk merchant, you have not exerted an effort to make a research concerning frozen accounts, then you're in BIG trouble. I'll keep it short. Once your merchant account is frozen, your present and future business is put under horrible risk. First, because you will lose the ability to process credit cards online. Second, you will be denied merchant account if you applied for another one. You certainly cannot allow this to happen and it will never if you are smart enough to take preventive measures.
Frozen merchant accounts are horrible for your business. Now is the time you find out the issues with your high risk merchant account provider before your business goes down the drain!