Bad phone wont recommend the Mojo 50

I bought 2 mojo 50's October 2014 and everything went good for a month. December the phone was send back to see why it isn't charging. phone was send back to us and it still didn't charged. middle December i send the phone back (after our holiday) the phone was send back to us with in-corrected software loaded. had to send the phone back again to get the correct software loaded. End of February my phone was replaced with a brand new one. The last 3 days my phone doesn't want to charge the same story all over again. i am using the swag chargers and still it doesn't charge. i don't have money laying around to buy new phones every time. i emailed them today to ask them after all my ordeal with this mojo 50's if i rather can get my money back which isn't my first time asking for it back. i requested this since December 2014. i am told sorry but you cant use a phone for more than 5 months then request your money back. you now what i am using this phone for 2 months. Yes i initially bought the phones in October 2014 (with the phones traveling more to Swag and myself than being used) and getting a brand new replacement phone i still have trouble with this phones....