Payfast and Wordpress don't work.

I have built more than 20 ecommerce sites, I have managed even more sites that I did not build or setup, and there is ALWAYS issues with the Payfast wordpress plugin, and every single time myself or the client have contacted payfast for support, they say it is not their fault/problem or whatever. Their support is absolutely useless and their plugin too. Moved to Paystack and have not had any issues.