Although at first ... 5

I purchased this product in April, initially it worked great I loaded several times my wiimotes smoothly and it took a long time. Since July the charger does not work, one of my battery was fully discharged, I put it on the base and ... nothing. So I put another wiimote that worked but still nothing. So I contacted Amazon to what to do because there is no manufacturer in the list NYCO, I expect the answer.
Also I ordered the same for my sister-I received it a week ago after the holidays. I unpack I put the batteries in place that work and I put them on the base to charge fully and NOTHING ... So I refer all pronto! So to avoid or not ... ??