crwdns2934241:0crwdne2934241:0 Duck
crwdns2934249:0crwdne2934249:0:
That battery is permanently damaged. It would be nearly impossible to restore a battery in that state of charge. Personally would keep pressuring the seller for a refund and get the battery from a more reputable place like here at iFixit or another place.
crwdns2915684:0crwdne2915684:0:
open