Still waiting for my refund

I ordered the lighthouse TV unit from Imperial homes in early December. The communication throughout the delivery process was poor and the product that was eventually delivered to me was much smaller than advertised and thus not very useful to me. I requested a refund on 18 February and have yet to receive it. They also said they would be collecting the unit from my home. Imperial homes no longer takes my calls or responds to my emails, and I thought I'd message here in the hopes of a response.