[PSA] HB Overwatch Loot Boxes - Only one key may be redeemed per month per account

u/pyromanticpyrope says:

Hiya! I just wanted to inform you (in case this hasn’t been brought up) that if people want to trade their HB loot box keys that they should offer only one (or that receivers should only redeem one key per account). I did multiple trades for these keys and only my first key appeared to give me the 2 boxes. I didn't receive any boxes for the second key, so I reached out to the HB customer support and they said this:

“We have investigated further, and this appears to be intended behavior as the loot boxes are only intended to be able to be claimed once per account. This means that additional keys or gifts received for these loot boxes will not provide keys.”

This isn’t explicitly stated anywhere on their website, nor on their support page that shows people how to redeem these keys. When you redeem a loot box key after your first one, it doesn’t give you an error stating that you already redeemed the one key you’re allowed for. It just uses the key and gives you no loot boxes.

Maybe it’d be useful to have some sort of PSA about this so that people don't make the same mistake as I did.