You should prepare the amended return and see how it comes out. You might have to file it. Was there any withholding taken out on them?
You should not amend until the first return has fully processed and you get the first refund or your tax due payment has cleared.
How to Amend
https://ttlc.intuit.com/community/amending/help/how-to-amend-change-or-correct-a-return-you-already-...
