I tried to buy some Eiffel Tower tickets on-line but couldn't seem to input my American cell phone number in the correct format to get it accepted. Any hints for how to do this?
Annette, Did you enter the number without any dashes? Sometimes including the dashes will bump it out. Also, did you let your cc company know you were about to do an international transaction?
you have to input the numbers with NO spaces or dashes in between them, and NO country code (just area code followed by the 7 numbers). then it should work!