Incorrect statement / Bad Service / Falsification

I bought a pair of sunglasses at Sunglass Hut in Sandton Square. I returned this at the Sunglass Hut in Edgars in Sandton City and bought another pair. <br> <br> RCS (which keeps track of the Sunglass Hut account/card) did not account for the return. My account, as far as I can gather, now shows that I have purchased two pairs of sunglasses instead of one. In addition to that, there was another purchase of R300 on the account which I have not made. RCS has refused to provide me with a statement- saying that they can only give me this on the 13th of every month, but they call me often demanding payment. I think that it is my right as a consumer to get a statement of account so that I can query these mistakes on my account. I have received around 6 calls from RCS but no one can assist me with a statement. Their call center agents are also rude and clueless when it comes to resolving these issues. <br> <br> RCS / Sunglass Hut/ Edgars should be able to provide their customers with a statement on request and they should ensure that incorrect entries are rectified.