Rangers to 'robustly defend' legal action by Imran Ahmad Ahmad was quoted on the STV website as saying: "It's true the club does owe me money. Charles Green has agreed to tell the truth if it goes to court, i.e I am due a five per cent bonus on all the commercial deals I negotiated on behalf of club. I am hardly going to turn my back on a bonus which is due to me when I've directly negotiated £67 million worth of contracts which benefit the club over the next five to 10 years. Neither I nor Charles have ever wanted this to go to court as we are substantial shareholders and in fact Charles had already brokered a deal with the club for a fraction of the full liability but the club has not signed up to it. I had also offered to reinvest all my bonus proceeds plus an additional extra £500,000 of my own money back into the club. At least this shows how much I've contributed to the club and the fact that I am prepared to put more cash into the club. Meanwhile, Laxey Partners Ltd has increased its stake in Rangers to 4.99 per cent. The news was confirmed in a statement to the London Stock Exchange on Tuesday. It remains unclear who sold the shares, although Green is prevented from transferring any of his shares until December. Rangers announced in June that Green had agreed to transfer over half a million shares to Laxey. The deal was struck last October but under the terms of a lock-in agreement, the transfer of Green's 714,285 shares to the Isle of Man-based investment firm cannot take place before December 7. Meanwhile, Rangers have handed a trial to Steve Simonsen as Ally McCoist seeks to boost his goalkeeping options. The 34-year-old joined up with the squad on Tuesday and will spend the rest of the week training with the Light Blues. Simonsen is a free agent after penning a short-term deal with Dundee last season, which saw him make eight appearances for the Dees. However, the former England Under-21 international is better known for his club career south of the border. He played for Everton under former Rangers manager Walter Smith and also had spells at Stoke City, Tranmere Rovers, Sheffield United and Preston North End.