False Discovery Rewards

I had three Dischem vouchers which I tried to redeem at Dischem online when making a purchase on 8 January 2020. Two of my vouchers worked fine but when I tried to use the third wiCode I received an error message informing me that the wiCode was invalid. I then called Dischem to request a reason for the error where the consultant told me that she could not find such a voucher number on their system and that I needed to contact Discovery Vitality to enquire why my wiCode would not work. I called Discovery VItality where I spoke to Siviwe. I explained all the details mentioned above to him and that I needed to have a new wiCode issued to me because I could not redeem the one mentioned. Siviwe informed me that he would get back to me in 48 hours and that he had logged a query on my behalf with the back office. Siviwe only responded to me three weeks later stating that I had redeemed the wiCode and that the query was resolved. But how could it be? I still had not used that wiCode and I was patiently waiting for my new wiCode to be issued to me. After numerous back and forth emails and phone calls, my issue is still unresolved. I have spoken to different consultants over email and telephonically with no resolution or understanding of what I am trying to explain to them. I keep receiving the same feedback that the voucher was redeemed when in fact it was not. I am very disappointed in the service I have received from Discovery Vitality. I had this same issue happen to me with three other wiCodes last year, but this was the final straw for me. If you as Discovery are promoting healthy living rewards and do not honour what you stand for then it is considered *****ing.