Dishonesty and lack of good customer care

On the 2nd January we went to Morkels and we liked the bedroom suit and the majestic dining room suite. which was then R48500.We were told they did not have stock for the dining room suite and will phone when they receive stock. on the 5th we were contacted and told now the amount has changed to 51500 he made an error off which I went on the website and saw the dining room price and bed amounted to 48500 and we cancelled the dining room suite order and just bought the bed suite.On the 21st Jan Mo*****i phoned again and said the stock is now available and the price is now 41k and I made an eft transfer on the 22nd after my mom had told him we do not want the display unit that is in the store. On the 25th He phoned my mom and told her there is only 1 unit left at their warehouse and someone from Newcastle wants that unit and he will give my mom the store display and we refused. We are now requesting a refund as we were told lies about the unit and now I am being told the reversal will take 7 days and I also need to send my bank statement and a copy of ID?? Why do I need to print a bank statement?? are you going to pay for my bank charges for this? I am very unhappy with the service.