Steve ........
I can only suggest that you may be a victim of the 1st May holiday (+2nd May 'faire le pont') problem.
Bet it'll turn up Monday.
No other suggestions, given that you've done all the obvious searching.
I assume that you are tracking your parcel via their site.
http://www.mondialrelay.fr/lg_fr/espaceconsommateur/suividecolis/exp_suivi.aspx
I think you will find that the event at Dijon was when it was taken into their system. You will know the day that it is coming to you as it will show as arrived at your local depot, then probably be shown as being on the van. Overall it normally takes about a week, but with the holidays it will take a bit longer. I don't think they deliver on Mondays.
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