Great customer service is not only for paying cust

I have logged a complaint against your staff and the way i was treated but you have not even responded I'm still receiving sms that I need to make payments i advised that i will only be able to make a payment end of September and even to try to pretend to call me that would help but no u can't do that because I'm useless i don't add value in your business i have been a great customer of yours never missed a payment never always paid more but what do u do toss me on the side for your staff to abuse me thank you i will spread the word that your company threaten to reduce my lime due to the fact that i was hospitalised and when i reported this to them they did nothing just ignored me like a fool thank you and god bless and may your business prosper