Extremely poor customer service

I have a account at Lewis which is up to date in fact im in credit of ore than R3000. The Lewis group has listed on my credit report that I have not been making payments for 6 months in a row. After visiting the Postmasburg branch I was shocked at the level of professionalism that I observed and walked out of the branch even more confused. Apperently on on my statement it indicates that Im in credit (R3000), but my statement also indicates that Ive visited their branch on a monthly basis making payment arrangements and apparently they tried to contact me... The funny thing is that I was living in JHB and havent once been to Postmasburg (they have all sorts of codes listed on my account like... 5302...missed payment telephone call not answering). The Postmasburg branch manager told me that she can provide me with a customer care number (thank you Mrs manager, so can google), so Im left to resolve the matter on my own expenses and time when its clearly a Lewis group error. By the way thanks Lewis for taking no ownership and messing up my credit status.