Bad customer service

On the 16:12:15 I went to the Telkom store close to PNP in Canal Walk to open a contract for the iPhone 6 which they advertised for R399pm. The store only had one phone as the other stores had none. I had asked that if I am an existing customer would I need all the docs again or just my ID. I was told ID is sufficient and so I only had my ID when I went. I was helped by who I think is Eunice and his attitude to start with was already off. He then told me I needed stamped bank statements, payslip and proof of address but he would reserve the phone for me. I filled out the form and told him I will return the next day with all the docs even though I was told I only needed an ID. The next day I drove all the way from MPlain to drop off the docs and then that evening he called to say he sold the phone. As a customer I feel that my commitment to purchase was disrespected after I put on the effort to get all the documents to this guy. I don't feel as if he tried his best to provide a proper customer service. Now I can't find the device in any CT store and now his sitting with my docs. I am highly disappointed with the service I received from him.