Don't despair, they grow very slowly at first. If you have a heated propagator a week or two there might cheer them up, but if not just keep them comfortable, moist and out of too much direct sun. They should eventually get going. But if they were in a really poor condition when you received them it might be worth complaining to the supplier.

Thankyou, yes we're trying to keep them comfortable. I suppose I'd wondered if there was some special "medicine"! We did complain to supplier as did others in our street who also received plants in the same condition and the supplier said they were changing the method of delivery. You do hate losing plants don't you :-))