I was ****med

I need help about this ketovatruweightloss I ordered the product from them of which the amount they asked from their adverti*****ts is not the same like the one they deducted from my account their shipment was R70 they said we pay only for shipments but they charged me R 2010.29 so i asked for refund the same day I ordered but even today the didn't yet refund me I also tried to phone them they promise but no refund from them .I need someone to help me to get my money back