Westbank taking double payment for my car in one month

I’m very unhappy with westbank . So on the 18th December westbank took money off my account for the car I bought without notifying me to say the debit order will go off my account early . Luckily I had money in money account as if I didn’t he would have been raised on my name to say I didn’t pay. I called in and advised the agent over the phone and he apologised . He said he will also put a stop so the payment doesn’t go off again which didn’t make sense why it will go off again . He then updated my email address as westbank had my email address saved wrong. Then on the 24th another payment went off again off my account for the car again. I called and was advised it will be refunded back to me and will take till Saturday which I stated it’s festive season and not I must wait a week for my money to be paid to me . I then asked to to the manger that assured me my money will be paid to me by the end of business today . I then called later back as the manager said she will call me but didn’t and then the manager advised that the first step has been done and waiting for the second step and the money will be paid by the end of business today. It’s now 21:00pm at night and still haven’t recived my money - this is really unacceptable from westbank and I need my money to be paid back to me