Seller trying to use tactics on me? What do you think?

[Peter K.]

So I placed an offer on a SFR, the listing agent told me through my agent that "The seller has received a second offer on this home and is requesting a 'highest and best' offer from the buyers by 5:00pm tomorrow" . Honestly, I think this is a b.s. tactic where they are trying to engage me into a bidding war (without for sure knowing if there is even "another buyer"(?)"). I'm not emotionally attached and am willing to walk away from this deal at any moment. But I wanted the BP community to share your insights? I know I heard on one of the podcasts (where at an auction- they have a reserve price- and they have their people place bids to get it up to that price so they can encourage other people to bid higher), so I think this applies to the exact same situation. What do you think?