bad service

I opened a CTM account last year and first week of dec i went to CTM Gezina to purchase bathroom set for my mom. i also paid cash for delivery fee. i was told my items will be delivered the same day. When i got home i got a call to be asked to add the delivery money as i was not charged correctly,i told the sales lady that i do not have money and it was not my fault that they miscalculated. she then said i will receive my items when there is a delivery for someone that resides same as me. i said ok.. the whole of dec nothing was delivered .. Jan i went to the store and told them to cancel the whole transaction and return the "money" back to my card , the transport money was refunded cash but there was a mistake the sales person did i was given my transport money back and he also put back the transport money back to the card so in my card it was the transport money and the credit i was given . the sales lady asked me to leave my CTM card as there was a mistake of transport money paid to my account .she will then swipe my card when another person comes to buy at the store ..i then asked her what will happen because it will seem as if am the one who bought with the card.she then said she will sort it out internally. i trusted her and left her with my card. And even though at the store i was told everything is fixed the statements didn't reflect like that it showed that i owed CTM R3000+ which i had to write numerous emails to RCS and CTM of which my emails where just read and no one bothered to reply and i could see they are read as i made a notification on my emails.after so many emails i wrote the credit money was returned .. then i was send a statement that i dont owe anything. i was relieved after so many emails i wrote explaining and asking RCS to rectify the mistake.then i send an email to ask them to cancel and close the card as i was ****ed with the service am receiving at CTM ,,i was told i owe R600 when i call the store the lady told me she swiped my card for another person to take off the transport money that was wrongly returned back to my card as credit available for me to buy at CTM.i have been pleading with CTM and RCS to clear my name of this debt..its been too long i wrote so many emails included everyone ********** , ********** ********** ********** ********** ********** ********** no one gives a **** at CTM or RCS while my name is reflecting bad at credit bereu.. am really really frustrated at the bad service am getting from both RCS and CTM