1. My internet is 15GB. How long does that allow me to be online? For general browsing and about three hours of iPlayer? I don't understand, and don't want awful charges.

2. What kind of phone is good for internet? There's so many and they confuse me. Something cheaper than an iPhone, ideally, but one that has similar features (like kanji dictionaries and maps). How long do most contracts give you for internet use a month?