Shocking Customer Service

I have requested that my debit order be moved to the 1st of the month. I phoned them and they assured me that it will be changed. Debit Order went of the 25th of the month and not the 1st of the month as agreed. I phoned them again the next month and asked them to amend the date to the first and she confirmed that it is for the first of the month and they could not give clarity why it went of on 25th of the month. The following month it again debited on the 25th and this time I was charged a penalty fee from my bank and Auto and General again messed up the debit orders. During my discussion I have also furnished them with my new mobile number. I attempted to submit a claim today and requested that they call me back. The lady said she will call me back and I have not received any calls from her. I again phoned them today and requested why I have not been called back and he confirmed that the phone was not on... as they tried to call me on my old number... I then requested that he call me back and he told me he cant call me back as there are a high call volume and if I need assistance I must discuss it with him now as they are only able to call be back on Monday.... how is that for service. Considering to change my insurance company... don't have time to deal with *********** staff...