Dont forget your Data abroad bolt-ons when you travel, internet can be difficult and expensive in some areas so if you are intending to use your phone abroad contact your customer service department for your contract and order a data bolt on abroad they can save you a fortune.

dont forget to zero your data usage counter in the phone befor you go so as to keep track on your usage.
some packages will not end until you cancel them so to avoid this cancel the package on your return.