My mobile usage is minimal and I have a

old iPhone. I have an £8/month giffgaff sim deal that covers my usage. UK cover only and I need to contact them to get foreign access. I don’t know the details of any potential costs, if any, though. Maybe just limits on duration of travel. No intention of foreign travel yet so no need to query. The carrying over of mobile regs re costs seems to be lost in the Brexit deal details. Does anyone know if there is any info? I haven’t seen specific details yet. Maybe Farage will know? He seemed upbeat in the pre referendum publicity!
Just seen this so edited it in.
https://www.bbc.co.uk/news/business-45064268