Assignment Vs Dividend Rules

[gord00 10]

I held pepsico shares and subsequently sold covered calls for June, 2009 @ $50 strike price. The covered calls were exercised prior to expiration on June 3rd, 2009, and the shares were sold on June 3rd. My question is that since pepsico also went ex-dividend on June 3rd I technically still owned the shares on June 2nd, one day prior to going ex, which would make me entitled to receive the dividend paid on June 30th. However my broker claims that the option was assigned the day prior to exercise, or June 2nd, and maintains that based on this assignment date I am not eligible nor entitled to receive the dividend. However, there was nothing posted to my account showing anything except the shares being sold on June 3rd when the option was exercised and the shares sold. My question then becomes am I entitled to the dividend or not? I believe I was misled and my broker was being dishonest. Please answer this for me if you can.