Well, it seems this is not entirely the case, mine has been updated to..... 'Sat 8th October 6.05 am - Missort Heathrow'.
I have spoken to someone from RM and apparently it got put into the wrong bag and instead of going to North London where it should have it's ended up in Heathrow! She say's it should be with the rightful recipient either today or tomorrow. Phew...