Double Debit Issue | No Customer Service

I have been using Payflex for the last couple months and have never had any issues until Today. I was double debited for an order and have checked to see if it has been reversed or anything, and nothing! I have emailed, tried to call, tried to contact them via WhatsApp, Facebook Messenger, instagram and no one response or acknowledges. This isn’t a R100 or R200 that was double debited. It’s a chunk of money and true to be hold, they will debit again next month as their app states that next installment is outside which is BULL cause right now, they took both the second and third installment. How can you only have an email address for customer support??? Just credit my Payflex wallet and I will be happy!