You will always find something in the T&C with ref to misprints on web sites.
I doubt that you will be able to demand the speaker. The web site does not describe the speakers or show a picture.
If they did eventually offer to supply any speakers it would only be a cheap set and would have cost you more just in phone calls and transport collecting them. It would be cheaper to buy your self a decent set of speakers for sound quality.
As it is not as described you can always take it back for a full refund.