Hi Dermot57,
Thanks for using the forums to get this issue with your mobile voicemail services looked into whilst you're in sunny Spain, I am sorry if this has been causing some frustration. I would be more than happy to look into this for you 🌞
I firstly have a link here which has helpful information in relation to your Voicemail PIN 👉 Virgin Mobile Voicemail
Please take a look and follow the information it provides, then let me know how you get on 🙂
If the information in the link doesn't help, I can try to assist within a PM, however as you're abroad at the moment any changes we make remotely are not guaranteed to work as you're not on the UK network at the moment.
Thanks,
Megan_L