This means that you must order at least 12 T-shirts, or whatever garments you are ordering, with the same print. Many screen printers have minimum orders because the setup process is the same for 1 shirt or 1000 shirts, and the setup process takes a significant amount of time relative to the actual printing process. If you're interested in understanding why this is so check out this article:
My screen printing company does not have minimums, but a single custom printed shirt would cost at least $75. Screen Printing is very quantity oriented. If you are only getting a one or a few pieces one option would be to get a Transfer. This can be done in full color starting at $20/shirt. Transfer's are not quite as durable as true Screen Printing, but are a good option for very small runs, and we have samples that have been through 20+ wash/dry cycles with minimal fading. If you're interested in pursuing this take a look at our website
Keep in the USA! You get what you pay for. Establish a relationship with a silk screen company and they will work with you on costs. And the more you buy the more you save. If you go abroad, you loose control of the quality.