Absa car insurance cancellation

On the 5th of June I was contacted by Mr Wesley Jacobs from Absa insurance requesting me to change my car insurance to absa since I'm an absa client. I agreed to change to absa insurance but when I called kingprice insurance to cancel my existing car insurance i realised that absa excess was R3000 yet kingprice excess is R1500. I immediately emailed Mr Wesley Jacobs to cancel. He did not respond. I emailed him again and he told me he's going to ask someone from his company to beg me not to cancel. I told him its not about being loyal to absa. I've been using absa my entire working life. So yes I am loyal but I am cancelling my cover. I even tried to call and the minute I gave my id number and said I was calling to cancel the call was dropped. I realise that the gentleman is not happy with me but I wouldn't opt for a higher excess. So please help me to cancel this insurance which was supposed to start in July 2020.