Puzzle is wrong

https://www.chess.com/puzzles/problem/1485002 there are 2 mates on the last move, and I picked the wrong one, and it said I got it wrong! Please help.

bug

The same puzzle was posted in this forum: https://www.chess.com/forum/view/site-feedback/apparently-i-played-the-wrong-mate-in-1

Report the puzzle: https://support.chess.com/article/1223-how-do-i-report-a-bad-puzzle

I just reported it

It's not a "bug", it is an incorrect puzzle. There is a "report puzzle" button with every puzzle that gets displayed -- that's how you report this sort of thing. Not through the beta chess.com forums.

Why doesn't chess.com make puzzles with 2 or 3 answers?

Because, usually, even if there are multiple answers, one is better than the other.

In the rare instance where there are two completely equal moves (ie 2 mates-in-one) these are supposed to get reported. They're exceptionally rare given the overall number of puzzles out there, I've only seen it come up a few times in many thousands of puzzles. But that's just my own experience... I'm pretty sure it affects fewer than one in a thousand puzzles. I've done >10k and only seen it 2 or 3 times.... But maybe that depends some on the level of puzzles one is seeing, thats possible...

Also, pending puzzle are the ones that are incorrect, are very hard, or very easy

Pending puzzles are  brand new without sufficient people having given it a try. "Untested" puzzles might be a better term.

I also got a 2 different mates puzzle recently, and picked the wrong one. There is a button to report that puzzle, and you can just click that.

Seriously a bug

It's not a bug. It's just that the puzzle is wrong. Nothing about this is a bug.

Not a bug to use the beta to report.