Incorrect Advertising

I viewed the game catalogue on 16/07 where a 3tb seagate PORTABLE hard drive is advertised for R1399. On calling the stores to ensure that there is stock before I go to the store, I was told that the 3tb is a DESKTOP hard drive and not the portable one. And they are unable to provide the PORTABLE hard drive at the price advertised. I am upset by this. This is false marketing. Other stores abide by the advertised prices, but it doesn't seem to be the policy for GAME stores