Or does it indicate that a seller was trying to increase the profit by
forcing you to bid higher?

I had bid on an item and at the last minute after 2 days of inactivity,
someone came in and bid higher.  I kept increasing my bid until it cost too much
for me.  I lost the bid (I was OK with that).  Then I got a second chance offer
to buy at my highest bid.  I declined.  Then I bid again different auction
selling the same item with similar results.  Again, a second chance offer.
Question is, is it normal for the second chance offerings?

Robert