Pep Stores Advertised Prces not VALID!

So I was browsing mobile devices on the Pep stores website. See one that I am interested in at a very good price, Itel AC32 which is being advertised on their website for R149.00. I then make my way down to Pep Somerset West in main road. Enquired as to where this device is, I was informed that the device was actually R649.00. I told the manager that I wanted the phone at the advertised price. She phoned the regional manager who bluntly stated NO. I then phoned their help line, no luck there either. So if something is advertised and they find out it is a mistake they give you the run around, absolutely pathetic