At some later point (accounts vary as to when; dates between November 1999 and March 2000 were given, and a Saudi government official put the onset at 4 December 1999),[4] Haifa began sending monthly cashier's checks to Dweikat of either $2,000 or $3,500, transporting them through Riggs Bank.[5] Dweikat signed some of these checks over to her friend Manal Bajadr, wife of Omar al-Bayoumi. The payments continued through May, 2002 and eventually totaled as much as $73,000.[6] (This sort of charitable donation known as Zakat from members of the House of Saud to Saudi nationals living abroad is not particularly unusual.)[citation needed]