Unsatisfactory service - Edgars

I am disgusted with Edgars. Their client service has become very poor. I have phoned the client services over 4 times already to credit the interest charged on my account. I have purchased a new Huawei y9 cell phone October 2020 and want to pay off over 6 months as I am on a 6 months plan all 30 years that I have an Edgars account already. Sales lady at the Edgars cell bar in East Rand Mall have processed the purchase but without my knowledge enter the details over 12 months. I only realized when I received my Edgars statement that they charge me monthly interest. I have called the client services and went in to Edgars to query this entries. They called the Head Office creditors and said it would be corrected within the next month account billing. My account was paid off by February 2021 within 4 months, less then the 6 months plan. I still await the correction of interest and the confirmation call that they have promised. I am very dissapointed in this bad service and decided not to buy any further goods from Edgars anymore. I'll support Foschini, Truworths, Woolworths and Contempo which gives me more service satisfactory. I feel to cancel Edgars account but I have an Funeral plan with the Edgar's club and don't want to loose all monies already paid over the years by cancelling my Edgars account. I truly hope you are reading this and get back to me with some positive result!