I've gotten a few of those, only on higher-end items. They have very poor spelling and grammatical skills, always done by text mesage. If you follow their leads, you'll see how it goes, an offer to send you money via delivered check by a 3rd party, and willingness to give you more than you're asking, "for your trouble", then there'll be a "good faith" payment by you to facilitate, etc. There's a bunch of them out there. They're easy to recognize.