Furnicraft - Bad for business , becareful

I took out a lay-by at furnicraft in Ottery in April 2017, I advised the sales consultant named Fatima that I am planning on doing home renovations and I see the slide under bed which I want for the new extended bedroom that I’m planning on building on special for R3500.00. I explained to her that I'm not sure how long the renovations will take place but I would like to lay-by the bed and pay it off so that by the time the renovations are complete then the bed is finished paid and ready to collect. I furthermore asked her advice on the matter, I asked her that should the bed be paid in full and the renovations not be done will I be liable for storage fees and she had advised me that it would be best to pay as much of the lay-by as possible and then just to withhold a small balance amount and pay the difference once the renovations are done as the store will manufacture the bed as soon as the balance are paid in full and we both agreed that , that would be our way forward. During the time I made regular payments up until I had a hold up / disappointment with the renovation. I went into the store and explained the situation and I was reassured that everything is still as planned. November 2018 I phoned into the in store and spoke to Fatima again, I explained to her that my renovations is almost done and that I would like to confirm the balance on my layby as I will be coming into the store to make the settling payment and she confirmed that the closing payment for the lay-by is R1000.00 (one thousand rand), I still questioned her and told her that my closing balance should be R500.00 (Five hundred rand). When I went into the store to go and settle the account, Fatima had given me some shocking news before I could even dispute the closing balance amount. She told me that the lay-by had been kicked out as it had expired. I was so surprised because I received no notification that the lay-bye is going to be not kicked out nor have she notified me about this when we had the telephonic discussion. I was given the option to either pay the current price of R5500 / R5550 or to get back a 90% refund from what had been paid as they keeping 10% of the payment amount. I insisted on speaking to her manager and she kept on telling me she will speak to the manager and hear what the manager has to say and get back to me. Twice thereafter I went to the store and she still refused to give me the managers contact details. Eventually I got the managers contact number phoned and spoke to Rushana who had advised me to send the manager an email. I’ve sent the manager Ghayat an email but no reply. I went back to the store and Fatima still wouldn’t allow me to speak to the manager she phoned in front of me and claimed the manager’s office phone was off due to load shedding. When I took out my cell and dialled the number the phone was ringing. After a long back and forth debate the manager had agreed that I should get an avadavat and take it into the store and they will refund my lay-by amount in full. I done that only to be then told that the total payment I’ve made was R2000.000 (two thousand rand). The total payments I made was R3000.00 ( three thousand rand) but when I phoned in Fatima told me that my total payments made was R2500.00 ( two thousand five hundred ) and now that I need to get my refund the manager is telling me that my total payments is R2000.00. I have sent several emails to the manager and received no reply, I even went back to the store only to discover that the store had moved. I am disappointed in the unethical service I received, I paid my lay-by in good faith that I could trust to receive excellent of service and trusted that the people I am dealing with I am able to trust. I want back my R3000.00 from furnicraft and will no longer do business with them in future.