Call centre info

I called builders warehouse call centre on 8 july 2018 at 14h36. I wanted to enquire if their kempton park branch still had the fan heaters in stock. I was told yes they do have goldair and I should hurry as they close at 16h00. I arrive at their branch in kempton around 15h07 and their main gate was closed. I went around and upon entry the security guard rudely tells me they closed at 15h00. I was quite frustrated as this was a waste of my time and money. The reason for my phone call initially was to obtain correct details prior to going to builders warehouse. Builders warehouse should please ensure consistent communication across their divisions please. Call centres should be in possession of updated information too!!!!!!