Changed lanes onto a bus lane as I was making a left turn and received a PCN

I took a left turn into a parade of shops before the bus lane ended and subsequently received a PCN. I turned in a maximum of 3-4 meters before the "bus lane ending" sign. Also the bus lane ended just a couple of meters before the left turn into the parade of shops. Also I can't confirm the time as the quality of the photographic evidence they have supplied is not at all clear. Do I have any chance of appealing the PCN? Thanks for any advise.