I had one wait for 5 months and was the final wingman for one even longer lived unit.
If you are waiting for a badge it is sometimes quickest to do a couple of extras, then you are waiting for "ONE OF 3" or so. which tends to take less time. The extras are not wasted -- they will be a start to the next badge when the time comes to do it.
Good Luck, as we say here --been there, done that.
Member team AUSTRALIA
My lucky number is 9291*2^1085585+1