Now that your SIM card has arrived you should be ready to start using your Three SIM card, but assuming you didn't buy an add-on you’ll need some credit. The easiest way to top-up is to register your ...

Several companies offer “travel SIMs,” which you buy in advance of your trip ... offers the eKit SIM Card. Functionality is similar to the others, and data rates are $1 per megabyte, prepaid.