Order failing to process???

<p>I have a R100.00 voucher that i cant use, i am trying to order and everytime i press PLACE ORDER it backchats me about my payment not being complete and its a R99.90 order, this is the message i am getting " COULD NOT COMPLETE ORDER" "URL:, CODE EATS.VERIFY_PAYMENT_PROFILE_ERROR, MESSAGE, vISA -**** WE ARE UNABLE TO ACCEPT THIS PAYMENT METHOD" I dont need to pay for this order of R99.90 because I have a free R100.00 voucher.</p>