Unreliable Mobicred

Hi I made a purchase at take a lot and I app**** for the Mobicred account but they failed to pay for my goods as a result i ended up paying cash. After some time i received a statement that im owing mobicred and i explained to them that they did not pay for my goods and it was like the issue was resolved, later on i received another call and another statement, i then spoke to a guy called Tsepiso and i even sent the emails to him as proof that they did not pay and he said he will speak yo his Superiors and get back to me and he didnt, i also spoke to a lady called Mbalenhle she also promised to get back to me and she didnt either. I kept on receiving these statements and o decided to call them and i spoke to a lady called Sihle i explained to her and she understood she also said she will get back to me with feedback and she didnt ive been calling and asking to speak to her and they promise to tell her to call me but nothing is happening. I then spoke to Branden and i refused to explain again and he said he will get sihle to call me until this day nothing has happened and i keep on getting these calls and statements from them meanwhile they are unable to assist me i have requested to speak to one of the Managers and they seem to be unavailable. Im so confused now and i refuse to pay for something that did not help me.