Can I suggest you put them somewhere with bottom heat. Also you need to cover the corms with a thin layer of compost. Roots grow from the top of the corm as well as underneath. Keep them moist, not waterlogged. Good luck!!

Many thanks. It's nice to hear they may still have a chance...lol

Might be a bit late for this now, but I always start mine off in the airing cupboard. Put some damp compost in a plastic bag place the corms on top and then tie the bag --------- shoots appear in no time.
Silly woman, I just realized you don;t have an airing cupboard !!!! Hey Ho.

Thanks Valadel! One tip for another eh? You with your vineweevils and me with my begonias...lol. I actually informed the people I bought the plants off and they are sending me a further batch. When they arrive I may try your tip and put them somewhere warm.

When you get your new corms....try some of them in as warm a place as you can find, upside down...no need for compost...and they will soon chit....then pot them up..(..I put mine in my heated propagator....)...it might be worth treating yourself to one....it will come in very useful for starting off seeds as well....

Oh that is so good to hear that they are being replaced ,my trouble has been that I just moan instead of informing the sellers of my disatisfaction . Well done Dylandog.
I agree with Amblealice a heated propagator is very useful.