Vodacom Unlock Summer - Vouchers Not working!!!!

I won a R150 voucher to purchase at Burger King that expires 02/12/2021 (because the voucher is expiring soon) I went in store as they said and Burge King cant process it they saying Vodacom are giving people expired vouchers. I wasted 2hours in the store trying to get this sorted out there is just no one you can get hold of at customer care, at the end we left with no meal and very embarrassed . Then again I win a voucher for Pick n Pay express store for R10 off and again the store can't process the the voucher number. Now I am starting to think this is simply a promotion not to reward customers and its all about just promoting the new vodapay app. With hox prizes. Now I am thinking the entries for the cash prize, Kia Rio, Honda S******, data for a year or 5000 VB are they really real. Because you never see a draw happing?