What do I do if amended return hasn't been processed and I haven't gotten a single child tax credit payment

[Critter-3]

If you did not get the ADVANCE CTC payments then you will get the entire credit you are eligible for  on the 2021 return ... follow the screens in that section carefully ... when it asks how much you got in advance answer it truthfully.  If you are married then there will be 2 boxes ... if you got one combined payment then either put it all on one person or split the payments in 1/2.