Dunkin Donut GK Teens prize

<p>My daughter won a R500 voucher from Dunkin Donuts on Gk teens and was only able to use it once. I have reported this to Kfm and Dunkin Donuts they said the problem will be sorted and to date the problem still has not been sorted. This is totally unacceptable to me as she wants to take her friends and the voucher is not working. </p>