1) need to wait until March 7th or you get refund whichever is later.
2) No additional fee
3) This 1099R would Amend the 2018 return.
4) When you Amend this return you will then use the Amended return as starting point next year, but if you are asking about 2017, not sure why you would Amend that return as this issue has no impact on it.
