Twice a week we publish problems that will feature in a forthcoming Dear Jeremy advice column in the Saturday Guardian so that readers can offer their own advice and suggestions. We then print the best of your comments alongside Jeremy’s own insights.

I work in a small team for a large professional services company and have a colleague who, while constantly bemoaning how busy they are, refuses any help. I’d put this down to a martyr complex but was alarmed when I found out they had told my line manager I was not pulling my weight. I also learned that they have said the same thing about another colleague who, like me, offers their support during busy periods.

I’m irritated that this person constantly moans about their workload, refuses help and then tries to suggest my colleagues and I are not supporting them.

Added to the mix is that although I sit within the team, my role is somewhat specialised so I’m not in a position to offer the colleague my help too often – although when I do, it is refused. How do I deal with this situation?

Do you need advice on a work issue? For Jeremy’s and readers’ help, send a brief email to dear.jeremy@theguardian.com. Please note that he is unable to answer questions of a legal nature or to reply personally.