Not Paid for Goods already Produced and Delivered

My name is Shawn Perumal, I am a self-employed printer. I received a call from Ronel Collopen(working at Liberty Life and claimed to be in charge of the payments of good ordered for the company) on the 21/05/2015 explaining that Liberty life needed a number of brochures printed and business cards for a number of people working at liberty Life that needed to be delivered on the 22/05/2015 which was done as the brochures was needed for training on that specific day. I was given the layout, colour, font, wording, size, format and everything needed for both the brochures and business cards on a '' Liberty Life '' USB stick from Ronel Collopen, being a printer this is essential as I need to produce the work my customers explain to me, and expect. I cannot do what I feel is right, which is the reason being in the printing industry you get what is called a ''Proof'' of what needs to be done. The layout was given to me on a ''Liberty Life '' USB stick, and it was also sent to me via a message from Ronel Collopen and she gave me the a go ahead, which I still have as proof on my cellphone. The layout was already done and loaded on the USB stick I just needed to print them out, and create the