Learning Technologies Group PLC (AIM:LTG, OTC:LTTHF) has extended the put-up-or-shut-up deadline for a potential acquisition offer until November 22. General Atlantic, a private equity firm, proposed a possible cash offer of 100 pence per LTG share, with an option for shareholders to choose an unlisted equity alternative. The deal remains subject to due diligence and completion of terms, investors were told. An independent committee has been formed to review the offer. Further updates will follow.