Edgars my nightmare

I have been trying to get Edgars to credit my account and close it as I had made a full settlement payment in September 2020 and have submitted my proof of payment numerous times to all the available emails address as well as to all the debt collector. Yesterday I went to an Edgars store to get in contact with them to resolve this matter so as they can credit my account and close is as I have no interest with doing business with them ever again for as long as I live and for MBD collectors to stop sending me messages on how to pay Edgars as I don't owe edgars. 16months later still no respond from Edgars,I'm so dissapointed and frustrated because of his company