Are there any replacment keys for this external keyboard

I dropped my external keyboard (all in one media keyboard) https://www.microsoft.com/accessories/en...

and most of the keys fell out. I was able to find all of them except for my up/down arrow keys. The keyboard still works with the exception of some games, but the missing keys ruin the aesthetics of the keyboard. If there are any sites selling individual replacement keys can someone link it in the answers?