I bought a Samsung Galaxy Core Prime on an ID contract. I was told that I could upgrade the tariff during the 2 year monthly contract if I required more minutes. This is not the case - ID do not do upgrades. You have to pay for additional minutes at a ridiculous rate. I've now been in 3 Different shops and 3 times the staff claimed they did not know that ID couldn't offer upgrades. I was told to take my phone in to cancel the contract. Unfortunately I bought my phone on a trip to Manchester and apparently only that store can cancel on the contract. Also they can't port a number from an ID sim to another ID sim! This is supposed to be a UK company with a central database but they act like a local store. The customer service is very poor - email after email from a different person each time with lots of apologies and no action. Please stay away and if you don't stay away from the ID network