Acaiburn dietary supplement
Illegally charged

I purchased a bottle of Acaiburn dietary supplements and as far as I was concerned that was all I paid for. I am trying to contact the company to see if I have been been misled into an ongoing membership but they are uncontactable. I am very concerned that they are going to keep deducting my bank account. How do I fix this problem as an amount of $77.74 was deducted from my bank account. Please reply ASAP as I am very concerned
Regards Merryn Lording