Bad service VUMA

Someone from the accounts called me and asked to forward her the proof of payment and I did but since nothing have happened till on Monday receiving a sms asking me to pay R399 for the order which I cancelled and waiting for my money back . All I want is my refund nothing more nothing less . I dnt want your services because you dnt care about your customers plus your managers dnt know what there are doing because he have been ignoring my calls and WhatsApp