Hi Shopify,
I really think you need to look at adding Yoco as an accredited online payment gateway in South Africa. Yoco are SME focused and have better rates than your current listed gateways and their up time and support is great from my understanding from wordpress, Wix, shopstar and woocommerce clients who currently use Yoco. Somehow Yoco can offer their gateway on these other platforms but not shopify - which is disappointing for me as a mostly satisfied shopify customer.