Terrible service from MTN and VVM debt collectors

i have been a client of MTN for over 10 years. i currently hold 2 contracts with them. 1 of which is a business contract. i had been unemployed for a few months in 2014 and after advising MTN of this, i was then handed over to VVM debt collectors. a payment arrangement was put in place and over a period of 1 year a 6 months of paying R300.00 every month. my account has only decreased by R1000.00. yesterday i spent the better part of the morning with MTN, being transferred from pillar to post and speaking to 7 different people after which i was told that they cannot help me. only an internal email can be sent and they will contact me. i have not received any feedback yet. i have been a client for all these years and after going through a bad patch, i feel like my hard earned money is going down that drain and no difference is being made to my account. i am aware of my responsibility but it would be great if MTN would at least get back to me regarding my account. MTNs customer service is shocking. i pay my account at the mtn store and according to VVM they do not receive my payments if MTN doesnt allocate it to them. i was disgusted to find out that VVM only has payment for JAn