Poor Service Delivery_Vodacom Insurance

Been reporting from August that I'm being charged on Insurance for a device that I don't even have anymore, August I was promised a credit note in September but lo and behold once again I was charged, made another call on the 9th September and was promised that I will receive an email the next day confirming that my request was actioned and that I should expect credit notes x2 for October but up to now, no email confirmation was received and it makes me wonder if I will have to call again the beginning of October as the word customer service is non existent with Vodacom Insurance (Finrite)