how come i have two phones on three if i top up £10 i can get 10gb of data and on the other i can on
how come i have two phones.both on three (both my children’s, one is a two month old sim and one is a well a few years old sim)if i top up £10 on the new one, i can get 10gb of data and unlimited calls and txt and on the other older one, i can only...