We went to Shinjuku today. Daniel bought his commuter pass and then we headed to a shopping mall called Lumine to go to Cecil McBee. After some confusion as to what floor exactly it was on, we found it. Their Shinjuku store is nice and really bright, especially when compared to their Shibuya 109 one. That one's just really dark.
Anyway, I made my way to the cash register, managed to explain the situation (although I realize I made one grammar mistake), and I showed him the receipt and he made a stamp card for me. Yay, no trouble at all! The card's gold and shiny. I was proud I managed to 'fluently' handle the explanation though. Much better than my Japanese from yesterday.