We did have a dongle once, I had no idea what it was for, have no idea where it is now, and did not even realise you could still use them, pre-load them or whatever. I rarely use my mobile when abroad, and if I do just grit my teeth and pay whatever; if I take my tablet I sit in the foyer of a hotel and use theirs, or am lucky enough to stay with family and use their wifi. All I can say is that it may be OK in large cities but further into the outback it is hopeless to try to get a connection. If more than one person in the house is using their mobile or tab then you could get booted off.