Coin did not work for me at like 40-60% of stores I tried it at. When I tried to get a refund they claimed it was unreturnable and could only refund 50% of the

Coin did not work for me at like 40-60% of stores I tried it at. When I tried to get a refund they claimed it was unreturnable and could only refund 50% of the money I paid for it. I wouldn't exactly say they had a good product or stood by it, this seems like an acquihire to me. They did try hard to do something that many said would be impossible, which is HARD, I'll give them that!