Failure to follow up on settled accounts

In the past year of 2015 i have been receiving calls from Vericredonline regarding my Foshini account outstanding balance. During these calls the agents were advising that i could pay via Store or bank and i tried making payments via the store. However on 5 November 2015 i made a full payment of the outstanding amount at the store (Markham's) and was never told that i couldn't make the payment because my account was handed over. I than followed up an called the Foshini group which i was advised taht the account was settled and needed to apply afresh in order to activate the account. There after i started receiving calls again that i was owing the collections , however the last guy i spoke to says Foshini never informed them that the account was settled therefore there has been charges since November 2015, because i was not supposed to pay at the store. I have requested the recordings of the agents that called me in 2015 advising that i could pay through the store or bank. And the level of service for the Vericredonline to give and refuse to provide answers is disgusting.