Delayed poor service and rude consultant

<p>I opened a new contract and had to cancell since the product did not meet my requirements. I sent back the product to the shop and requested contract cancellation on the 9th June 2016. </p> <p>Consultant said it will be cancelled within 72hours,but its been 10 days and I havent recieved any proof of deactivation. When i call the shop they promise to call me back and never does.</p> <p> </p>