Clothing account

They over charged me on my clothing counts. They have over priced me on my 6 months clothing account, I took staff for 1100, but they wanted me to pay R750 per months for six months. I never received any statement from them. I went personaly to ask for a statement, they said they cant give me. I stopped paying and they blacklisted me. I have paid more than R6000 for purchases that were less than R1500.