Ok ... mom MUST mail in her return even if you amend yours ... she can do so NOW.
Then when you get the original refund AND the amended program is operational you can amend your return. It is possible that amending will not change anything especially if your income is under $12,400 and you did not get the stimulus credit on line 30 of the form 1040 but you must send in the amendment eventually. Make sure to undo any changes on your return BEFORE you start the amendment process.
