Incompetance/ Poor service - Consumer Complaint for Bradlows - Head Office

On Saturday the 6 June, I visited your Bradlows store at the East Rand Value Mall, to purchase a lounge suite and a sideboard. Black sideboard was on show on the floor instore. I asked the Sales Person of they it in stock and she said yes, we continued with the Sale, I paid cash total amount of R20999
I was told they can only deliver the Monday or Tuesday the 9 June.
Tuesday came, no delivery and no call from anyone from Bradlows ito delivery. I had to call the store to find out when they will deliver my stock. I was told the delivery people from the warehouse will call me. Wednesday came,and I received my lounge suite, no sideboard.
I called the Sales person in the store and she told me they will deliver the sideboard on Thursday.
Came Thursday, no delivery until I was called to say they dont have the sideboard in stock, or at any other Bradlows store ss this product has been discontinued, I cannot understand why this was never told to me on the day of the purchase and payment.
The sales person told me she can give me a discount if I take the sideboard on the floor which is not new and not in 100% good condition. I asked for a refund and was told they dont refund in cash but they must transfer the money into my bsnk account and therefore she require bank statement and ID copy and she will send to headoffice to process and it will take up to 7 working days.
First of all why must I expose my bank statement to anyone, it is confidential. I can privide a letter confirming my bank account.
Secondly, why must I wait so long for my money for the Sales lady's incompetance..
I think this was done very unprofessionally.
Please can you check with your staff at East Rand Value Mall- Zodwa, and Dikeledi.
I would appreciate your feedback.
Thank you.
Arlene Snell
0788032669