Flippa Auction Question

I was recently watching a website auction on Flippa where there were 69 bids. After clicking on the bidders list I noticed that Bidder 7 went from a bid of $336 to $500 without any incremental bids in between (same day) It looks like it is the same bidder or am I reading it wrong? see attachment

24 Great Aged Domains Just $99 each – MarijuanaStand (dot) com

24 Great Aged Domains Just $99 each or 2 for $150
All .COMs

247Women – NameSilo 2003-03-06 2020-03-06
ApplyForNewCredit – NameSilo 2009-09-05 2020-09-05
CheaperWines – GoDaddy.com 2000-04-26 2020-04-26
Christian2Christian – NameSilo 2008-07-07 2020-07-07
ChristianJustice – NameSilo 2000-06-27…