Worst customer service

So on the 11th of August I opened a lay bye at Ackermans protea gardens. On their recipe point number 4 for the lay by policy states that "this agreement may be terminated by the purchaser at any time prior to the expiry date. Whereby Ackermans will refund the money already paid in full... Now from my understanding my lay-by expires on the 9th of November. So on the 6th of September I went back to go and get a fund for the deposit I took out on the lay by but I was told that their policy states 30 days, I was rudely assisted by some lady that has dreads and she told me that I can only exchange for the amount or get a gift card... When I asked for the manager she told me to come back again the following day. Unfortunately I couldn't go back due to work...i again went back on the 10th of October and then I asked that they give me a gift card and they gave me yet another story about how I am supposed to wait for my lay-by to expire so that I can get a gift card but with my understand and what the previous lady had told me was that I couldn't get a refund but I could get an exchange or a gift card, yet again I was a refused a gift card... I don't know if Ackermans does not train their staff about the policy that they have written on the receipt or what but I am now irritated and just want to get my money back. The store manager explained to me that I would be able to get my gift card if I has taken a lay-by that is less than R1000 this was never explained to me when I initially paid for the lay-by... I just want my money back as their policy states that I'm entitled to...