For the record, ASW did indeed apply for LGW slots to be able to operate a RTM service but have not, as yet, been allocated any slots.
They may indeed have been allocated slots at the other end of the route, but the RTM slots data is not yet available for "public" view to other carriers...so only they would know if they have been successful as yet.
I may be wrong (can't remember if it applies only to jet aircraft)...but something in the back of my mind says that RTM has a ORY/LCY-style annual movements limit....or was than EIN??!