Payflex *****s money through their interface setup

When making a payment, they deducted my money but their interface froze up twice. My money was deducted but didn't register with Makro, so they declined sending my products and told me to take it up with Payflex. Payflex has no customer service number to contact and everything on their FAQ basically says it's my problem not theirs. Now I'm out of pocket and I have no way of getting my money back, AND they're keeping the monthly deductions on my account so I have to pay monthly for something I didn't receive. It's a horrible service. They will take your money and just put their hands up and say "It's not my problem".