WOW! I was trying to sell my fridge and got the same message NiK got I also taught it sounded shady so i also looked it up and found this!  REPORT REPORT!

Text:
Good morning my mode of payment will be via Bank certified check However to ease the pick up the item will be picked-up from you by my shipper once you receive and cash the check, i am willing to wait for your bank to verify and clear the check before the shipper pickup the item therefore I'll need these detail below to mail out the check. The Full name on check Mailing address (Home Deliverable Address) email address