Unprofessional customer service

Vodacom has literally left a bitter taste in my mouth,My entire household has been loyal to vodacom for over 10 years but moving forward.I think we will consider other networks IN VIRTUE OF POOR SERVICE! I called the service provider requesting a settlement letter to pay up my contract on the 12 of February 2019.on the 14th made a payment and sent vodacom signed supporting documents as requested as well as proof of payment to ********** on the 19th I sent an email for feed back. No response was given. I called in to enquire I was not assisted instead.I was told i cant speak to anyone from the cancellation department they work on emails therefore they will escalate my query on my behalf and cancellation department will get back to me within 48 hours.Its the 27th of february today and I still have not received any feedback ,I've sent Multiple emails with no response .I am Livid! Their level of incompetence is **********.How can you receive money into your account for a settlement and completely ignore the transaction and a clients intentions.HOW? I want feedback!