Unc, I was just thinking it's a pity you don't have Darty in the UK .... when I Googled and discovered they are owned by Kesa Electricals plc .... and apparently they own Comet. Now, we have never used Comet, but we use Darty for ALL our electrical appliances, and if Comet operate the same system and same service I would recommend them without hesitation. Our appliances, the latest of which is the new TV, were delivered on a day to suit us and they will even deliver on Sunday (which here is exceptional). In our experience they 'phone around 8.30 am on delivery day to give you a time, usually a three hour window, they deliver promptly. They will dis- install the existing appliance and remove it for you, install the new one and leave everything clean and tidy. We have used them for about 12 years now and have never had ANY problem .... the two men who delivered, installed and set up the new TV were so pleasant, they were given a bottle of red wine each, and I don't give out the best red willy nilly
The on-line price is the same as the shop price, so the delivery and installation etc is free.
I don't know how the price of your appliance compares with Comet .... but if it was favourable, and IF Comet are as good as Darty, I'd be inclined to cancel Curry's and start again