Help! British Airways has lost my bloody suitcase and I urgently need smart clothes in a UK24. I'm staying at Imperial College London for a conference which starts tomorrow (Friday) at midday. The best I've found so far are some hideous, too-small items from M&S on Kensington High Street.

In my experience Central London can be really hit and miss for readily-available plus size clothes that can be tried on in store. I'm thinking mid-quality, Mango, River Island, that kind of thing - but does anywhere actually stock the clothes in my size in store? Ideally black ones, not summery flowery mu-mus?

Shops open at 10 so I'll have a two hour window to go shopping then get back and change and head to the venue. If you can rescue me, internet, then please please please do!