Help! Abroad with no phone signal

[SamFrith]

After phoning BT to make sure my phone would work in France and being assured that it would I arrived at 2am and cannot figure out why I have no signal let alone data.

I can't even contact BT for help as they only have phone numbers to call.

How can I contact someone for help? 

Currently sat in a McD's using their WiFi

[imjolly]

go to MYBT and make sure international calls are allowed and also make sure you set spend limit to greater than £0 say £5/10

[SamFrith]

Thanks but I have tried this and no luck

[imjolly]

do you have roaming switched on in your phone

[SamFrith]

Yep. 

I'm hoping that a family member can contact BT on my behalf as it seems I have no hope. Where is the online chat feature when I need one?!