As I've mentioned on another string ........... we too were wondering what the hecky-pecky was going on, as we checked and VFS had received our passports on the Monday (after sending them down the previous Friday).
It took them a further 13 days to process the applications (bog-standard 6 month entry visas), then 2 days to return them. I can only assume that now is their 'busy period' with folk wanting their 6 month passes to last into March/April.
It
is a worrying time, but if you
know you've filled them out correctly they will be back before your leaving date.