Poor service

What a joke mtn is I made a payment of R581 on the 29th of March and until today mtn claims that they never received the payment I have sent proof of payment and statement but still I have not received my money After months of calling and sending emails no one even bother to call me and find out if my query has been resolved but I have to call and hold for hours for them to tell me that they can not assist me It's **** and I want my money