In reply to shaun walby:
When I was there earlier this summer, I was only really interested in buying bread (and croissants/pain au chocolate) and they had daily deliveries from the local boulangerie. It was only available in the mornings though.
The village of argentiere is only a 15min walk away, anything you can't get at the campsite you could buy either there or in Cham.
Post edited at 12:13