Poor service provider ,*****s customers.

Am am very furious with cell c insurance, I have been double debited for the past 3 months, I triend number of times to contact and queried the account all I get is a pending QUERY, consultants are rude and they get annoyed on the phone, last I spoke I had requested what was to be done with the amount they took from me for the past 3months phone was dropped on my ear... I've been with them for 2years this is my 3rd year and since November ive been debited way more than what I signed for , today i got an sms for another month end payment which is also a double pay . I went 5 to 10 times on their cell c golden acre so but still cant be assisted.. such poor service provider with such huge name to fruad customers I am furious