Thanks the plusnet mobile smart cap will be locked at £30! If any data roaming cost more than £30 it will cut off data itself and no further charge applied.
Plusnet should make it more clearly on their site at Band 1 roaming charge:
Plusnet data roaming cost 4.4p per MB (is it £4.4p or 4.4p?)
Edited by adslmax (Thu 09-Mar-17 07:18:53)