citizens bank fraudulent overdraft fees,excessive fees, New Hampshire

I have been getting hit with overdraft fees for the last 3 months.This month alone,second day in,over 200.00.I made a check deposit on a sat.and then made other transactions over the weekend.They shuffled everything to look like it all happened before the check posted.Then they claimed they had a hold on the check.The same check I deposit every month.We were never told there was a hold.They have now taken so much,my mortgage is going to bounce and I will have absolutely no food or money for the week. I have spoken with a Supervisor and they recite all these policies they claim I should know.Funny but their policies seem to change every week.What ever allows them the greatest access to my money.