I get 40gb data on the go binge plan from 3 mobile for £17 a month on a 12 month contract. Netfix deezer and a few others are exempt from the data usage, stream all day and it doesn't bite into your allowance. Only ever had a problem with getting signal when I've been in fairly remote parts of the highlands. You can get Aries from about £10 upwards that plug into them giving a stronger signal