Still awaiting refund...

I cancelled an online order on the 24th of November. I have been in contact numerous times, but here we are, more than a month later and I have still not received a full refund. On the 12th of December I received communication that my query was sent off for processing and a refund is due in 10 working days. After my 10 working days I have still not received a refund. I have given this company more than enough time, but to still not have received a refund? Pathetic! Reference number: ********** 3394/GO