HOW IS A BED NOT BEDROOM FURNITURE?!?!

So me and Joni have been thinking of buying a new bed for a while, a nice bed. We both fell in love with in Argos, and seeing this advert decided to go buy it..

This advert very clearly states 15% off all bedroom furniture, but I couldn't get the 15% to come off, so I phoned  them up. 4 phone operatives and 2 managers later i discover this is because Argos don't class beds as bedroom furniture! How is that possible? How is that even allowed? I can't remember the last time I was this angry at a company!! I begged, I pleaded, and I yelled blue murder at these people but no one would help me. The last woman i spoke to was so useless. She admitted the advert was misleading. She admitted it was frustrating, But she still refused to help me. ARRGHH!

But now we are facing a terrible dilemma. I still really want that bed. And we would quite like it soon, so we can have a spare when people come to visit us over the summer. But i now hate Argos.

Do we buy the bed?