How much is fee for M visa for Greek working in United Kingdom and how long does it last for?

D, usually, a business M type costs 86 pounds per person. It usually takes 4 working days to process your application after you submit it. You need to provide these documents: a completed application form affixed with a half-length color photo, your passport and copy of its data page, your residence permit in UK and an invitation letter from business partner in PRC.