3RD Contract to Sign for same thing

I went to African Bank East Rand Mall to apply for a loan, a lady named Delisile Motha Help me with all the documents and paper work this was on the 09th of February 2016, Contract Number *** all went well and waited 2 days for the money reflecting in my account, after several calls to African bank to find out if my Application was approved, they couldn't give me an answer, I phoned again on the 12th of February and they said my application was rejected and they couldn't tell me why, I again app**** and sign for the same loan contract. Now Still they couldn't tell me why my application was rejected.Today the 16th of February 2016 the lady phoned and said my application was rejected again due to the wrong nationality captured on the system, now she wants me to go and sign another contract for the 3rd time, I mean really cant they see on my south African ID Document that I am south African.As a consumer I have rights, now I need to go in for the 3rd time to sign a document just to change the nationality. When I told her she need to fix it it was her mistake and im not coming back to the branch she told me she cant fix it alone.