Hi @Karlh1
Assuming you've bought your phone "direct" i.e. over the internet or phone, then you have standard 14days distance-selling-regulations to return any purchase. An EE mobile phone is no different. You can read EE's policy here
If you've bought your phone in a retail shop, then no you can't return it unless the shop explicitly agrees or the phone is faulty.
Although - what apps are you trying to use, on what phone?
