Services unfairly suspended.

I have been a loyal customer of Telkom for 6 years. Not once have I missed a payment. So, in June 2022 I upgraded my cellphone contract with Telkom. After making my upgrade, on the 20th July 2022 I got an SMS from Telkom telling me that the amount due on my account was R2,149.24. To my surprise, Telkom only debited R1,429 from my account on the 25th of July. I was only made aware of this last week. Today, Telkom has suspended my line saying that I owe them some money due to an administrative issue on their side. When I ask them to please unsuspend my line, they are saying that I must make a payment before my line is unsuspended. This is in the middle of the month whereby my account does not have the money required. Instead of making a payment arrangement with me, Telkom just bombards me with an added problem of suspending my line. How on earth is one supposed to live without a phone for an entire week before I get paid? How does this company treat a customer that has been loyal to them for 6 years like this? I use this phone for business and personal contacts. Now I have to be isolated from my contacts because of Telkom's own administrative issues? This is bitterly unfair on me. If I could cancel this contract immediately, I would do it without hesitating. This is a farce!