Adds background on bid from paragraphs 2-4
Jan 28 (Reuters) - FitzWalter Capital said on Wednesday its increased buyout bid of 491 million pounds ($677.83 million) for Auction Technology Group ATG.L was final, after the British online auction operator denied its biggest shareholder access to conduct due diligence.
Auction Technology had
rejected
the London-based investment firm's 400-pence-per-share offer earlier in January, saying it had not received a customary letter with full terms and conditions of the increased offer from FitzWalter.
The proposal marked FitzWalter Capital's 12th approach for Auction Technology, since talks began last September.
Auction Technology did not immediately respond to a request for comment.
($1 = 0.7244 pounds)
(Reporting by Raechel Thankam Job in Bengaluru; Editing by Janane Venkatraman)
((RaechelThankam.Job@thomsonreuters.com;))