EE has just launched a brand new mobile phone offering that lets you switch between various tariffs depending on what you fancy – ideal for mobile phone users who don’t want the commitment of a static 24-month phone contract. The new SIM only style plan combines the best of both current pay-as-you-go and pay monthly options, and has thus been dubbed the Flex plan. Rather than topping it up as you go, the new, flexible tariff will work like a pay monthly plan in which a direct debit will leave your account each month. But unlike other 18 and 24 month commitments, you can change how much you’re paying month by month, as well as pausing or stopping your plan whenever you like. Each plan will last for 30 days, with any unused data rolling onto next months allowance, so you can get a second chance to use it, although if you stick with the same plan, you’ll get a free extra 500MB of data reward added to your account every three months. Launching tomorrow (25th July), prices start at £10 per month (bagging you 2GB of data, 1,000 minutes and unlimited texts) reaching up to £30 per month for…