Clicks Gezina - Bad customer service

Clicks Gezina-Am very disappointed with the service I constantly get from Nicolas,on Friday 27th I went to clicks Gezina to buy 4 items of Kambrook which were on promotion that stated 50% off when you buy 4 kambrook or Safeway products to my surprise I was told those other two kambrook products are not included on the promotion meanwhile the promotion did not state that selected items where on promotion ohk since the cashier was also surprised she called part of management(Nicholas) he had the desency to stand and tell me I can't get those products on promotion with an attitude like am not buying or a customer at clicks, then I ended up buying 2 products from Gezina with R768 but something told me to return the products since I was not happy then I went to Another branch returned the products since I felt like I was **********,Sunday morning I went to clicks Doornport then I found Mr David only to find out his store had only two items that I wanted to my surprise he made a plan for me to get all the products I wanted by calling different branches to check if they had stock of other products I wanted that's when I got all 4 products with the 50% that was stated to my surprise I paid R1080 for 4 products meanwhile in Gezina I could not because someone did not know what he was doing(Big ups Doornport branch Mr David for exceptional service I just wish some people can learn a thing or two about customer service) unfortunately I had to go and return the blender because it was not in good condition and the iron cz it looked like it was used then I got a bad attitude from Nicolas again.I am so disappointed honestly if I had my way I would stop buying things from Gezina. I'll be waiting for an apology from Nicolas