It is a pain as JASFLAMT pointed out. Once they ask if the location was open, the rest of the form should have been grayed out except the picture of the closed location. Unfortunately, this isn't the case. I just filled in each field with something to get the report to go through and mine was accepted.
If you're happy with the half "go-fee" then submit them. If you need the shops to mail something, then don't submit the closed location. You can just return again before the due date to do them again or maybe request an extension to do them at the full amount.
"We're just two lost souls swimming in a fish bowl -- year after year..."