Tobi is frustrating bring back human consultants

There is no more customer service at Vodacom,if you call you get Tobi virtual assistant whom is useless because it has limited menu.i bought a voucher at vodabucks store,the voucher is not working I don't know where to report it so I can get my refund,Tobi cannot assist,calling 135 you find Tobi,tried online chat the redirect me back to 135,I hate Tobi