Bad customer service: Dischem Blueroute Tokai

I made at Dischem Tokai for a bottle of Biogen Magnesium Glacynite. The Biogen however gave me headaches after using 2 tablets. I then phone Tokai and asked if I can returned the Biogen. I spoke to Mark and he got me 2 bottles of 30 tablets of Dischem Magnesium Glacynite because I told him Ive been using the Dischem brand but unfortunately they didn’t have any in stock so the gentlemen assured me that the Biogen and Dischem tablets are from the same supplier. I then bought the Biogen bottle but it didn’t work for me. I went to Dischem when Mark phoned me to let me know about the 2 bottles he got for me from another store. Unfortunately I was told by the 2 ladies at the till that I needed to pay in the difference. I questioned why I had to pay in the difference and I was told by the 1 lady that Mark did me a favour to get me the tablets from another branch. I mean really now, I am a customer to tell me this in my face. I was not happy with the 2 ladies at the till. I however took my voucher and told them I will not pay in the difference for the other 2 bottles. I’m a regular shopper at Dischem Tokai, to be treated like this was unacceptable.

Florina