Appalling Customer Service

Im a resident of pretoria and was holidaying in durban,i went shopping at Edgars Pavilion and upon paying for my purchase the money went off my account but I was informed by the cashier that her pinpad said offline so no money was paid,i showed her my Notify Me from my bank and called for the supervisor who advised me to pay again,and dat the inital payment would be reversed,if not she would call me after 24 hours and they would do an EFT back into my account.The transaction did not reverse,i received no call and I lso emailed Edagrs and got no feedback,this is a matter of me paying an extra R280.00 that has not been refunded to me,no call has been received from edgars and no response received in regards to my email,i am simply disgusted by their lack of customer service!!!!!