Mail to Paris Urgent!

Hello, I'm cycling in Europe with my family. We have arrived in Budapest and need to ship a small package (the rolled up bags we will fly our stuff home in) to Paris and wondered if anyone has a contact in Paris that we can mail some things to. We would pick it up in about 4 weeks around August 11. Message me if you do! We need to mail it by tomorrow morning. Let us know! Cheers. Chris and Samantha