Voucher

Good day<br> <br> I receive sms's from woolworhs that gives me the weekly discounts etc. This past week they send a sms that said if i buy more than R500 i get R 75 discount. I went to woollies and purchased more than R500 of groceries,when i got to the till,the voucher number woollies gave me did not work. The woollies wellington assistance was good,they tried calling the call centre,but they could not help. I had to buy the total amount wih no discount. Very dissapoimted.