I mentioned above how to get a copy of the return, and I provided a source above on how to amend, if necessary.
You wrote: "If I’m only amending the name part would it affect anything else in the return?"
I don't know what all you are ending up correcting and how it will impact the rest of your return, if any. If it's just to change something like the name, it shouldn't change anything else. However, something like DOB can have an effect.
Sorry, but I can't help you with anything in regard to fixing the ITIN application. I've put in a request for someone to assist you in this thread tomorrow. In the meantime, you can look at your return and see what exactly needs to be changed, and hopefully someone will continue the discussion here tomorrow.
