Very bad service from both your store agents and call center

My sister got me a clicks voucher after giving birth to my daughter, knowing very well that I love shopping from clicks. I then decided to go to clicks wonder park on the 12. 8.2024 to use the voucher my sis gave me, when I got there the agent couldn't assist me and called the manager, the manager came, she was very rude with an undermining attitude. She said what I have it's a tax number and they can't assist and that I need to tell the person who bought me the voucher to call the call centre and ask for the voucher, I asked her if she can't do it now, she refused and said there's nothing she can do. I asked my sis to call the call center which she did the very same day, they told her they will send me the voucher within 2 days time, but even today I'm still waiting for the voucher which we paid for, and I can't use it. I have been using clicks for years for my toiletries, I'm so disappointed in your services and wouldn't recommend anyone to buy vouchers as a gift cards because wow one would be so disappointex