RBS Citizens Bank Account Or Service Complaint

RBS Citizens Bank account or service department,

Checking account Problems caused by my funds being low Massachusetts

i made a deposit yesterday and my account was in the positive. this morning they charged me $12.00 for overdraft. i have overdraft protection on the account in the amount of $70.00 and the amount they said the account went $4.00 in the negative. i looked at the account this morning and it was never in the red or minus and yet they charged me $12.00. last month they charged another overdraft fee of $12.00 for the $0.00, that 's right, - - cents they said they had to cover. again the account on line was never had a negative balance