A deposit of R8000 not reflecting in my Contract

A deposit of R8000 was made in January 2015 to Rochester Northgate, when I was purchasing a lounge suite. it came to my attention when I got the contract to sign that the deposit was not reflecting in the contract. I made them aware and they forwarded me a reviewed contract. Two months later after the lounge suite was delivered i received a call from jd group confirming the amount for the debit order, this is when I realised that we had different amounts, the contract they had was different from my contract. with the further investigations being made we realised the deposit of R8000 was not reflecting in my account. it has since taken a month and half for jd group to resolve this issue. I am really disgusted and would like to have my money back if they cannot allocate it to the right account.