Customer service lacking

I am a regular payflex user but I must say that their customer service is not great at all. When you try calling, it says that they can't answer due to high volumes, and to message via webchat which is non existent on the website. When I try to whatsapp, there's no answer and it's been a few days since I emailed with no response. I was double debited and need an urgent refund but after doing investigation into their social media account I realise that this is a regular occurrence and they have now limited comments so that they don't have to deal with social media enquiries. Oh, you get an automated response on Facebook and Insta that they don't response due to the POPI act. I'm really frustrated with this because it's the second time I have an issue with this woolworths payflex order