Springbok Casino is offering online slot and keno fans the chance to enjoy a special 25 percent cash-back promotion worth up to ZAR1,500 ($130) so long as they have an existing balance.“If you’ve got a balance in your account you can get 25 percent cash-back on your deposits,” said Daniel Van Wyk from Springbok Casino.“You don’t need a bonus code or anything. Just contact customer service after your deposits and they’ll take care of it.”The three-reel Double Ya Luck slot from developer RealTime Gaming was added to Springbok Casino’s portfolio earlier this month and the online casino is continuing with its celebratory 150 percent up to ZAR1,500 deposit bonus. Until the end of January, players can enter coupon code ‘DOUBLE50’ in order to take advantage of this special offer.