Boycott Argos

On the 8th November i bought something on Argos' website. Realising it was the wrong thing, i then cancelled it. However, they delivered it, and because i wasn't in the Dior Prefect signed for it. So i emailed them again, asking them to come and pick it up. And i emailed them again. And again. Now i have about twenty reference numbers and there's still a big box in my hallway.
So i've just emailed them again:

Hello!
Thank you for answering my email within 48 hours. Admittedly i had to go all the way downstairs, through the bramble patch, across the busy main road and over the rickety wooden bridge to get it, and even then it was just a reference number.In fact, i can hardly remember why i emailed you in the first place. Oh yes, it was to try and get you to come and pick up the huge box that you delivered after i cancelled the order. Oh, and to get you to give me my money back.
So. Any joy?

I wonder what their response will be. Probably another reference number to put on the pile. Sweet.