@jellyfish_smile, what
@Cutie101 said is correct. I find that a couple of the forms for immigration are protected from "preview mode" in a browser (imm0008 being one of them). One must download and saveit locally first then open it up in Adobe (not online) in order to fill it out or update it.
Since you have a version you already used,
find it and only update the parts that have changed if need be (e.g. new address or new child, height change or whatever) and re-validate to get a new barcode, then submit. Also, inform Accra what changes you made in your email/note back to them.
If nothing has changed since you submitted it, send the original in with a a note stating that none of the info has changed and everything is up-to-date. I hope this helps