Lens returning help

[webmonkeyuk]

Ive emailed sigma about the lock button on my 80-400 as its become slack and is suffering from lens creap when im walking about, only had it 7months so it will be done by warrenty but i was wondering how i go about sending it off as ive never done this before, do i need to get a padded box from the post office and insure it?

 

[webmonkeyuk]

Got it from warehouseexpress, but i just thought they will only send it to sigma so i contacted them, got a fast reply from sigma just saying they can do it for me and send it to there address in "Herts"

Thanx for the help guys