One Cart vouchers bought on Vodacom App

I bought One Cart vouchers on my Vodacom App to use at Makro. As Makro is the only store in PE the One Cart Voucher can be redeemed at.

One Cart has subsequently severed ties with Vodacom and I have these unredeemed vouchers that I cannot use.

One Cart refered me to Vodacom for refunds, but is an absolute nightmare to speak to someone that can actually assist me.

I think I have R1000 worth of OneCart vouchers that are absolutely useless.

Vodacom if you want to offer a service you should have the service personnel to back it up.

What do I do with thse vouchers!!!!