3 MONTH WAIT AFTER PAYING FOR BED

I paid for a Seally bed on 30 November from a Sleepmasters branch. Today is 26 Jan, basically 2 months later, and Sleepmasters have now informed me that I need to wait ANOTHER MONTH for my bed, that I will only be getting it on 26 Feb, meaning, I'm going to wait 3 months for a bed I have already paid for. I've been understanding and nice but this is totally unacceptable. Besides the wait, I coulve been earning interest on this money which is now in YOUR account for 3 months. I dont even believe that I'll be getting a bed on that date. Imagine giving an exact date so far in advance.

I need my bed now that I have paid for please, can someone make a plan. Or you can return my money WITH interest and I will pay it once it reaches the shop for pickup. Rediculous.