No feedback , No Response

I have placed an order on groupon on the 30/03/2015 made payment via bank <br> - no one sent or respond to whether was my payment received or not sent several messages with regard to my order or query no one seemed to call me back .<br> <br> i called the contact centre they adviced that something went wrong with my order i might have put in wrong reference or wrong information ..<br> Which is impossible i decide to send them the proof of payment 3 times but no one is saying anything <br> can i please have my money refunded to me so i can order on another online service provider <br> <br>