International call doesnt work

Cell issues

Traveling for 14 days internationally and so far have not been able to use my phone for 7 days

[Edited: "Personal Information”] 

Have int calling text and internet plan.

What i have tries so far:

Airplane mode off and on

Turned phone off

Had tech support reset network settings.

Can toggle cellular data on but no option for data roaming

Pretty frustrated with 4 calls to tech support with no solution

I would appreciate if you could move this request for a solution up a few levels to get me up and running.

Only time to ask for help is while I am on a hotel wifi and not wanting to spend my travel vacation time on this issue

Please contact me via text to get me an update

Thank you
user_b8g4rf
[Edited: "Personal Information”]