I got a free 2 months trial from my GP. I only used one month though cause it made me go crazy!!! Scarey crazy! GP reckoned I had too much estrogen in my system that sent me crazy. I mean, I told a 5 year old kid at the swimming pool that if he spat at DS once more i would hold his head under the water!!!!!!!!!!!!!WTF!!!!!!! I was the most awful person when i was on Yaz. When the dr said he thought it was cause of the pill i didnt believe it. But i stopped taking it that day and havent been awful like that since, thank goodness!