The worse service, do not take a contract with them

I am so annoyed at the unprofessional manner my account was handled 26 June I paid and canceled my contract was told send the documents which I did. 27 June received an email with Mpho Thosago (consulted) advising my account was closed and resolved. 8July received an invoice stating I owe and need to pay, called vodacom and they said my account was paid up. 4 August received an email from collections and about an overdue amount, I called them and got passed around cause no one knew anything and they could not find my account, I was told that I need to pay again cause I still owe money, requested for them to send me banking details which they did not send. Emailed on the 8th again and called was told my account was passed to MBD attorneys and needed to call them. I paid the debt with MBD on the 14th cause they did not know what they doing and have horrible services just like Vodacom. Today I have not revived a closed up letter and getting harassed with calls after paying and not receiving proper cmunication from vodacom.