T-Shirt Printing Job - Langenhoven Park, FS, 9301

Hi! I need to print a logo onto a plain white t-shirt as a Christmas gift. (It should be centered in the middle and must at least be 12cm big) How much will it cost and is it possible for you to print a logo that I designed onto a shirt? Also, do you provide the shirt or should I buy it myself and send it to you? And if you can do it, should I email the logo to you?.