This will be for a young girl whose parents have separated. They don't want her to have too much data, with the focus on phone calls should she wish to speak to the other parent or in cases of emergency etc.
Plans of around 1GB/month would probably be fitting. But calls will need to be unlimited.
Oh, and a monthly plan rather than a 365 day plan is probably best suited as to avoid her using all her data prematurely.
Network not important.
Thanks in advance!