Pearl has condemned Standard Life's offer for Resolution saying it does not offer ‘compelling value' for shareholders.
Resolution has requested a 24 hour extension on the 'put up or shut up' deadline for Standard Life and Pearl.
Resolution is mulling over a formal Standard Life offer of 517p and 0.715 SL shares for each Resolution share.
Standard Life and Swiss Re are reportedly set to launch a 730p to 740p per share bid for Resolution.
Standard Life has appointed Stephen Ingledew as distribution strategy director.
Resolution chief Clive Cowdery says only a "compelling offer" from one of its rivals would distract the company from completing its merger with Friends Provident.
Resolution rivals Pearl and Standard Life were told today: Make a firm offer by 5pm on 25 October or walk away.
Standard Life and Swiss Re are reportedly closing in on a 750p a share joint offer for Resolution.
The Government's decision to stop the progress of hybrid annuity products "lacks foresight", says Standard Life.
Resolution and Friends Provident have released the final merger details to the stock exchange this morning, paving the way for a counter move from Pearl and Standard Life.