MTN Disgruntled Customer

I have been a mtn contract customer for years, but the service I got recently at their customer care number 135 is irritating and frustrating to say the least. What happened they charged me the minutes they did not credited me with in my October 2024 invoice. I've been calling 135 to explain my issue and they gave me reference, then say you will get your minutes in 24 hours. I even went in store to explain and show them invoice and sms I received as evidence, but they also launched the query then gave me reference again, but until today I have no received those minutes. It's clear now to me that mtn is a ***** who took my money for product they didn't give me. I resorted ro hello peter because I have nowhere to go now and other customers should be vigilant because mnt is a ***** and I will never renew my contract with them.