Unhappy customer

I have never in my life been involved with such *********** staff in my life, my policy was firstly accepted with a different amount than later they call me to do amendments to my policy because of the incorrect car description. Well I disputed that and their manager adviced that she would call me back she's going to check if there is an offer they can give me. Okay to cut the long story short I specifically told them to debit my account on the 29/03/2018 guess what I wake up this morning the 28/03/2018 and they tried to debit my account after I had told them my account is to be debited on the 29th, now my question is what exactly is being debited because no one got back to me... I'm so disappointed and disgusted by such service. I'm very unhappy and think their customer service is just the worst to say the least.