No voucher after signing contract

<p>I opened a new contract on 17 April 2017 at the Mtn branch in Parow. Mtn at the time had a Zando - Voucher Giveaway Promotion going that was available to new Mtn customers who sign up for a new Mtn contract within the period 1 to 30 April 2017. After numerous attempts to get my voucher i still have not received it.</p>