In reply to mike123:
Hi,
I work at BackcountryUK, we'll do it for you no problem.
If it's a straight forward shell stretch (usually on the outside either below the top instep buckle, 5th met base, or below the fist buckle, back from little toe) then it won't cost very much.
Worth touching base first as though we're quiet over summer we still have appointments going on.
Thanks
Phil