I'm having the same issues here with my Oculus Quest batch 03/2019. I noticed that the light was going off for charging and the oculus white light was coming on. So left it for a few to see if it was just go out on its own. The light never went out it just kept draining the battery. I read that maybe I should hold the power and the - volume to reset it. That also didn't help. I was final able to get it to charge by plugging it in and clicking power a few time till the gold charge light just stayed on. I also tried charging while I was playing it would work for a few then go out with the power still plugged in.
I was also at BestBuy on the 21st thinking that I had ordered in store. only to find out that it was a preorder to be delivered to my house. They couldn't tell me if that order was going to be on time or not. But that they had 2 or three in the store while. I had to chooses either purchase another in store and return the other or wait it out. I choose to wait it out. It arrived on the 23rd.
Today I took it back into BestBuy and was told that it was backorder and they couldn't even reorder me a new one. I choose to by the BestBuy protection plan that would give me two year. I'll keep it till the they are available in the store.