Dfs - sofa reduce before delivery, anything I can do?

Hi

i ordered 2 sofas from DFS in October, the sofa still hasn’t been delivered .

ive just looked online and seen that the price has been reduced by £170 each.....

Would I have any way to renegotiate with DFS for the reduction to be knocked off the price, I’ve only paid a £200 reservation fee.

if anyone managed to do anything like this before with DFS, can you recommend who to speak to?

many thanks

dan