Holding back delivery fee when nothing was delivered

I ordered something online at the fix. Days later i got an email saying that I cancelled my order and my refund is being processed. I did not cancel my order, im assuming they cancelled it due to no stock. I was then refunded less the delivery fee, even though nothing was delivered to me.

I sent numerous emails and no one answers the phone. Could someone pls refund my delivery fee.

Not im impressed with your level of service at all