Incorrect product advertised

I entered into a contract for a Lenovo laptop via a telephonic sales transaction where the salesman assured me that the laptop on offer was an I5 laptop.

On receipt however the laptop was actually a 1.5 GH notebook which is totally inadequate for my requirements (surely the rep should know what an I5 processor is?).

I have since returned the laptop and wish to cancell my contract, but trying to get through to someone to assist is a nightmare.

Should anyone look at this page, the Invoice number is *** and the MTN return reference number that was ssued by MTN Easgate store is IRMS380394.

All this was done within the 7 day return policy, again mentioned by the rep.

Thank you