Bests & Worsts Reviews from Amazon

I bought this for my husband’s birthday. I know people who highly recommend it, so I bought it. The problem is I had it for a few weeks before I gave it to him (again it was a birthday gift). We charged it up and without using it within a few days it was at 50%. At that point, we charged two phones and it is dead. I am past the return window. My fault, I should have tested it, just didn’t think of it. If you get it try it out very well before the return window closes. I can’t find a way to contact the seller either. That’s usually my first course of action if I have a problem.