Digital Voucher Failure :-(

Poor support service. Absa has Absa rewards challenges every month. Recent Absa rewards challenge was to purchase digital voucher via the Absa App. I did multiple attempts via my different accounts, each time it showed transaction failed. Every time I'd receive the money was taken and returned into my account. Few hours later I see the amount of 2 google play vouchers that showed "failed transaction" was taken out of my account with no voucher received. I logged an email and phone call, only to receive a response "someone will attend to me in due course". Its been a few days, no one did yet... Will no longer attempt to purchase vouchers via the App. Absa gives incentive to purchase digital vouchers, but when you purchase, Absa takes the money but you receive no voucher. Hard earned money gone!!!