Unmet promises and bad service - Seattle Coffee Company

I had a free coffee due to me and on the 18th May, I stopped at Cyrildene Caltex's Seattle store and ordered a large Butterscotch Latte and asked to redeem my voucher. The lady serving me asked me to put in my cell number and said that she saw the free coffee voucher. She 'redeemed' the voucher, said everything is okay, but still on the computer, she asked that we do it again as her system went offline. We did this 3 times and she said that I needed to pay cash for the coffee, as the system was down and it didn't take the redemption of the voucher. I paid cash for the coffee (R39 - proof of payment can be supp**** to you if you want it). When I went to Seattle in Monte Casino a week after that, I ordered a small Butterscotch Latte and asked to redeem my voucher. The barista advised that I had no voucher to redeem.

I sent an email on the 30th May to ask Customer Service to assist in resolving the matter. A guy called Andrew called me a few days later. He said that he would investigate and get back to me by mid the following week (6 June), because he was busy investigating. He did not get back to me.

I then sent a follow up mail on Wednesday, 20th June, and still, no reply.

It is such a pity that the "Customer Service" representatives of Seattle Coffee Company, do not represent the quality of the coffee throughout their service. I absolutely love the coffee, but their client service sucks.