BAD Customer Service

I've never seen such useless customer service in my entire life! On 13 August, I went into store and paid for the bed that I saw on the previous weekend, the store manager showed me a black material and I decided I wanted it in that color as I like black, a week after payment I was phoned by the manager and informed that the color was already sold out, but a week ago I paid for this product in this color...I was furious when the Area Manager informed me that the Store Manager was informed a week before I paid my bed that, that specific color was sold out, so she sold me on a color that she knew they didn't have. on Friday 27 September I emailed the store asking for an update as I have already been sleeping on the coach since end of August and my back is ****ing me, on Sunday she rep**** saying she'll be contacting head office the following day and let me know ASAP on when I will be getting the bed, I'm still waiting for feedback and this is really starting to annoy me!