I ordered a few lipo battery packs from hobbyking. They all have a sticker on them saying "shipped at 30% charge, return to storage charge asap". Luckily I remembered to check the cell voltages on all of the packs and they were at around 3.65V on average (I mean the individual cells). I charged them to full charge one by one, until I reached a battery pack with these voltages (image attached).
If the photo is not clear, the values are: 1.86V, 1.04V, 1.54V, and 3.75V. I checked them with a multimeter as well to verify, and those are indeed the voltages.
As I understand it, a cell that goes under 2V should be discarded even if it was only left that way for a few days. The shipping of the batteries took about 8 or 9 days, so it's been sitting at those voltages for over a week.
What should I do at this point? My first instinct is to immediately connect the battery pack to a charger and charge it very slowly until they reach ~3.7V, and then charge them normally all the way up. But considering the voltages the cells are at, I'm wondering if that's even safe... Should I just leave it alone and request a refund, or is this salvageable?