thanks for all the replies, it's great getting different perspectives on techniques.
the signed contract seems like the go next time - good tip! Will also have a much smaller offer window (I gave 2 days) as it just drains you - hard to focus on other work! This is for our future PPOR so my mindset is half IP and half PPOR...
after the knockback, waited until offer had expired and offered another 10K (approx 2% of offer) and was told I was 'close'. Get sick of that game pretty quick! I think it was a reasonable amount so I'm gonna duke it out on auction day.
It's been a poorly run campaign - horrible photos, backyard unavailable due to mangey dogs (and lots of poo!) and a small agency, not their normal area, not many properties on their books and I'm guessing not too many prospective buyers in their books either.
they didn't engage other parties when I made my offer, so I'm thinking two things:
1. vendor already in 'auction mode'. it was mentioned the vendor wants to go to auction now, even though my offer was made on wed, the auction was still 1.5 weeks away. Previously they were open to offers but now maybe not unless its super high
2. no other interested/serious parties to counter
If it is 2, I did mention that I will not be attending auction (interstate and incontactable) so they will effectively lose me as a potential buyer. Either they didn't believe me, take this as not 100% interested or they do have other interested/serious parties that they plain just didn't call to start a pre-auction bidding war. I'd be interested on people's take on this.
All part of the (double guessing) games I guess...