A group of Saudi Arabian lenders has rejected an invitation from Ahmad Hamad Algosaibi & Brothers Co. to attend a meeting next month to discuss their claims on $5.9 billion of debt. The banks have no interest in attending the meeting proposed, according to a letter to Algosaibi from a law firm representing the unnamed Saudi lenders. The letter, dated April 3, didn’t give a reason why the banks don’t want to attend. Algosaibi and billionaire Maan al-Sanea’s Saad Group missed payments on at least $15.7 billion of debt in 2009 in the Middle East’s biggest default, as the global financial crisis froze credit markets and asset prices slumped. The two family holding companies, which are related by marital ties, have been locked in legal disputes ever since.