Refund for order ***5

I did an online purchase on superbalist and tried to use payfast option to pay for the purchase. It kept on giving me issues for about 5 times until i opted to do an eft payment. Unfortunately after doing the eft payment was when I realized that one of my many payfast attempts actually went through. Now on my bank stament theres two payments that went off of the same purchase. I have been strugling for about a wek to get my refund calling everyday and sending emails back and forth. I sent through proof of payment to superbalist but Im not getting any joy from them