Paid for gift vouchers expire

A few years ago I bought gift vouchers from Kalahari as Christmas presents for my nephews living in South Africa. Unfortunately, I used an incorrect email address and my nephews did not receive these vouchers. Some months later I contacted Kalahari and explained the situation, to which they replied that the vouchers were still valid. <br> <br> Despite that they were still valid, my nephews still struggled to redeem said vouchers.<br> <br> Only recently I was told by a family member that the vouchers still hadn't been redeemed. I immediately made contact with Kalahari to establish whether the vouchers could be transferred back into my name or whether I could cash these out seeing that the recipients of the gifts were still struggling to redeem these vouchers.<br> <br> I was horrified to hear that this was not possible due to the vouchers having expired.<br> <br> How is this possible when these vouchers had been purchased and were essentially a financial instrument? Why did Kalahari fail to notify me of their imminent expiry? I have paid for these and would have preferred for Kalahari to act in good faith.<br> <br> I doubt that the new iteration, Takealot will enjoy my business in the future - Disgusted!