Mothercare have an offer on at the moment to buy the Phil & Teds Sport in red & the double kit in red & get a £70 discount - this is more than the cost of the double kit itself (£65.99).
If you add a double raincover too (because you will more than likely need one unless you live in a bubble!) & use the 10% off code (attached) it deducts the 10% before the £70 offer giving you an additional £41.80 off!
Use the free delivery code attached too. (think delivery is free over £150 anyway).
The discounts don't show until after you've entered payment details but they do show before you confirm your order - including the £70 offer.
Make sure you enter the promotional codes on the same page you enter your card details.
There is also 5% Quidco so it is possible to get this for around £290 delivered!
The single pushchair alone is £329.99!