2TB Seagate Expansion Drive

The above is advertised in all News Papers for R899. Deals from valid 17th to 23rd January 2018. When you get there to buy it you are told it is a mistake. On no account will they call a Manager for you to discuss the problem with. What happened to the day when a mistake like that was made that they had to give it to you at the price advertised. I was not the only person looking to buy and all involved were highly upset.