Um, what they are doing is illegal... shelf price is the advertised price, and according to the law, they have to sell that to you for that price... heheheh... business law classes rule! Unless they have a HUGE visible sign that says otherwise and alerts you to the price differences, they can not do things like that!
The staff at Lordco are not helpful, and head office needs to train their staff on customer service. Seriously, write in a letter of complaint to head office, and also mention the negative publicity that they will be getting through word of mouth advertising... word of mouth is still the most powerful advertising tool that consumers have control over!
I have had some crappy service from Canon (yep the camera company), Kal-Tire, and a few other businesses that really did a poor job. A letter goes out and lo-and-behold the letter was responded to with an apology and things were made right for everyone involved.
Cheers