Bad service

Auto and general has been debiting my account a day before I get paid since I took a policy with them in July this year. I called in and was assured this will not happen again. But it did and this time I didn't have enough funds in my account so it put my account on a negative which means I have to deal with bank charges. I requested a call back this morning from them and four hours later I am still waiting. I have decided to leave them. Not happy with the inconvenience of paying bank charges and now I have to buy airtime to call them.