Thats nothing, I had to send four log books off to have my home address changed - sent them all in the same envelope - received three back within two weeks and the final one took six weeks, when I rang to chase it they were completely baffled, obviously it had dropped behind someone desk or something.
Incidentally the log book that took 6 weeks was due to be scrapped, when I finally got my tax rebate back it was two months short, funny how that happened...........