PC World! very angry, off to see the manager tomorrow, talk about customer service!

Think I am allowed to say PC World am I!
Have been thinking about a new laptop as this one is ancient and dying on me, so picked out a model on the PC World website and trotted off to the store, had only just got inside when the usual "can I help you" "no Im ok at the moment thanks" so I went to find the model I was interested in but no it was not on display, so the chap who spoke to me as I came in was nearby, I asked do you have such n such a model? he said "how much was it"? I said £399, straight away he said "sorry no we don't have that model in stock. he said I know because another customer has just been in to ask"!!!! (hmmm strange I thought) also according to the net it was! in stock, but i didnt argue as I wasnt 100% sure of my facts.....he then said "BUT WE DO HAVE THIS!! MODEL" (£100 EXTRA)..he then goes on to tell me all the so called extras etc etc etc ...I said no thanks and walked out!! puzzled I went back home checked the net and yes it WAS in stock...so I rang and spoke to some one who then put me through to customer service..unfortuantly I didnt get the mans name and they asked me to describe him, which I couldnt do as we have to be so carefull what we say these days...havn't we! she was most apologetic and even offered something off if I was to still purchase the item...but I declined...and I am off to the store tomorrow to see the manager..as I feel disgusted that this person thought he could pull one over on a "gransnet " person!!
huh!! the top and bottom of it..was he couldn't be bothered to go and look and!! he thought "here comesa granny" lets lead her a little dance, and if I get her to buy the more expensive model I will have more! commision!!...huh!!