Voucher were are you? Telkom?

I upgraded my Telkom mobile contract on 2 April. The salesperson convinced me to take up an offer where I should have received a R1 000 voucher. He reckoned within 2-3 hours. I should have received it via email. Well, today is 14 April and no voucher yet. I went back to the store only to be told that it is head office that sends out the vouchers. I hope it is not a case of the fish rotting from its head.