BBVA Compass Bank Account Or Service Complaint

BBVA Compass Bank account or service department,

Checking account Problems caused by my funds being low Texas

On - the - I deposited a check in the amount of $250.00 bringing my balance up to $320.00. Following my deposit, I used my debit card for - purchases in the amounts of $38.00, $44.00, $120.00, $40.00 and $46.00 totaling $290.00, thus leaving my account with $35.00. I received - NSF charges for my purchases each in the amount of $38.00 totaling $150.00. My account is now in the negative and the bank refuses to refund the charges. How is it possible to get charges when there was money in the account?