I started a new role 4.5 months ago, which was a sideways move, same organisation different department. I have tried to support my old team here and there but they have now recruited to my old job and the director has asked if I can meet with the new person to go through how I did things. On the one hand I would like to help but on the other-hand I am keen to move on especially as they did not proceed with a pay uplift request for exceptional work over the past 12 months because I was leaving. I did really enjoy this job and did cover and accomplish a lot but it was never really recognised. It is only since leaving that I can see how much I did do and how little support or acknowledgement I actually got. I was at times treated quite badly. So why do I feel bad for wanting to say no to this request? Or should I just do it as a one off? There are others on the wider team in the same dept who could support.