PNP SMART SHOPPER - PROMOTION

the promotion when fulling up with R600 X 4 YOU GET A COLLECTABLE CAR on the filled my car did not get a sms - when i phoned PNP MSART SHOPPER Ingaan advised the sms will only received by the 4th filling, did not work i emailed and phoned again uptill today query not resolved last week i through in petrol twice and had to het another collectable car no sms received they a bunch of ****s no one wants to help you issue sort this out , WHY DO THEY HAVE PROMOTIONS IF THEY DONT KEEP TO THERE WORD