Bad Service

I went to the store to apply for credit I was so happy to be a member of Edcon, but was later disappointed in the service I received. Firstly the NCR agent (sales person) told me that I will get 50% off on my first purchase if I spend one thousand or more.The next day I went to East gate to purchase only to find out that Birchacres did not gave me the voucher and East gate refused to assist me and advised me to go back to Birchacres and get the voucher.When I got there the team leader and cashier give me bad service, stating that I should I purchase at there store and there is nothing they can do for me . I have to go back to East gate and exchange the items go back to them and purchase then I will receive the discount. After a long debute I asked to speak to the store manager and he gave me the voucher which to me discovery there is no 50% off. I'm truly disappointed.