Kids want them is the problem. Wouldn't touch them myself. Loving my Tab4 installed my own launcher and icon pack so it looks cool as. Got everything I need on it and plugged into my smart TV.
Keep the original phone that's locked, get it unlocked cheap at your local corner shop and sell it for a premium You should get a full refund out of the useless ****ers that can't even do a simple unlocking as they either bullshitted you or are plain stupid. I could have unlocked it through my laptop for you in 10-15 minutes for free!