Bad service and ridiculous credit score ratings

After being a 17 year client of Cell C spending R3200 per month with them, I was very disappointed about the treatment I received from them today. I got to the store to upgrade my contracts. Then I got told that I have a R1200 credit limit and that I can only take 24 month contracts and not 36 month contracts, due to a bad credit rating. My credit score rating is 668/740 which is a Soaring High Score according to their app. My only account that I have and that is linked to Clearscore is my Cell C account. How can Clearscore give me a high rating and Cell C wants to penalize me as a loyal client of many years because they decided to give me a low credit score rating. We called the Cell C Care department regarding the low credit rating. The woman couldn't help me and promised me that her manager called Jabu will call me back. She never called me back. I am extremely disappointed in the service I received from Cell C today. So then the store wanted to force me to take other upgrades within the ridiculous credit limits that they wrongly allocated to me. My contact end date is 10/02/2024. As a result of the way I was treated today, I will then close my account completely with Cell C and move it to Vodacom or MTN. Cell C if you are treating loyal customers badly like this, you have your answer your company is struggling financially. You loosing clients that spend a lot of money with you as a result of you to did to me today and probably did to those customers that decided to go to your competitors.