LoanDepot Mortgage Complaint

LoanDepot Mortgage department,

FHA mortgage Credit decision / Underwriting California

I made my mortgage payment over the phone with automated system and authorize them to charge withdrawal from my bank $1700.00 for the month of - but when i checked my bank statement they had withdrawal more than the amount i authorized which was $1700.00. By them doing this it put me on overdrawn on my account which i was then charge a $30.00 courtesy fee. I called they said they were going to refund me the amount and i would get a call from someone to verify this but i never received a call. I called them today again and they say they no where in my account does it say i 'm getting refunded. This is not the only time i had to pay extra money because of them last year i had to pay penalty fees on the tax payment they did n't make.