Hi Moose64,
Thank you for reaching out to us in our community and welcome, sorry to hear you are unable to access your Voicemail, when going abroad you need to set up a Voicemail pin first, you can find out more around Roaming including what you need to do and all relevant charges here.
So I can help I will send you an invite into a private chat, once received please click on the purple envelope to accept.
Regards
Paul.