We rely on networks that are not ours when you're abroad, sdu60 - I can appreciate it can be frustrating and for that I apologise. With the message you received in terms of network capabilities, it doesn't sound like it would work on that network, the SMS it relates to would be mobile data SMS, not a standard SMS this is why that wouldn't be working.
Can you try the following please:
Select Apps from the Home screen or swipe to access Select the Virgin SIM toolkit option. Depending on the SIM slot the SIM is in this may be ‘Virgin’ or ‘Virgin2’ Select Roaming Select Select Mode Select Manual Select International
Apologies - but I am only trying to help here, sdu60.
Your phone is an Android - the above would be relevant. What I will do is send you over a private message to double check everything is set from this side - have you been able to log into your online account at all and check if roaming is active from there?