Poor Service anf False advertising

Deeply disappointed in the service at CELL C. Both my sister and I are due for an upgrade. Although the catalogue clearly states the cell phones and contracts that are available, the consultants(potchefstroom mooi rivier mall) told us that we can't have it because they were informed by management to only sell the more expensive contracts(pinnacle 2Gig to be exact) because they would have to close the branch if they gave clients the pinnacle 1Gig contract. Why is there a catalogue if we can't get what's being advertised? We then decided to do the upgrades by calling the call centre 084 145 and we were informed that an agent will call us back which also never happened. We again called in today and was sent on a wild goose chase. No one now seemingly works with upgrades and no agent had the ability to help either. One contract expired already and it is really unfortunate that we did not get the required assistance. Why advertise phones on a catalogue, but refuse to give the client what is being advertised?