If you're a contracted customer:
Please contact us via the online form, which can be accessed from your customer area.

If you're a non-contracted customer: 
Corporate Customer Service is available:

By telephone:  on +33 (0)8 25 80 18 01 (service charged at €0.20/min + standard call charge in France)

• from Monday to Friday 8am to 7pm
• Saturday 8am to 12pm

By email: service.client@chronopost.fr