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a note.
We read everything and reply within a working day. For something urgent — a missing parcel, a damaged box — mention the word ‘urgent’ and we'll prioritise it.
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Email
hello@cosykiller.com.
Phone UK (+44) 0203 011 2215 — Mon–Fri, 9am to 5pm.
Stuck on a case?
Write to supersleuth@cosykiller.com with your case name and the document you're stuck on. We'll nudge you — without spoiling — toward the right trail.
Post
Cosykiller, c/o RHG Events Ltd,
Grimsby, North East Lincolnshire, UK
(Full address on request.)