A while ago I had a run in with one of my work colleagues. They are a bit senior to me, and they acted in a very unprofessional way with both myself and towards the customers e.g. one of the things they shouted at me was "I don't give a f*ck about the customers". We both work in a role with a high level of customer interaction.
Because of this and other awful behaviour, for the first time in my whole career, I made a complaint about them. I then was told off record by other colleagues that other complaints had been made about them, and many from the customers who said this colleague was rude and they were taking their business elsewhere.
The manager in charge has not followed up on my complaint and it has been 3 weeks. I saw them in the lift at work and they told me that my colleagues version of events was completely different to mine, and more implicated me as the one in the wrong. That it was my word against theirs. I don't necessarily expect the manager to take my side, but if you have no complaints against me, and multiple against them, then surely you would think that they have a problem on their hands?
Not sure how to handle this. It has actually made me want to leave the company and I dread going in now. I feel like it has been brushed under the carpet. Also, I have seen this colleague since and they just look through me and totally ignore me. This is incredibly childish.
I think I am going to look for another job as I don't want to work for a company where unprofessionalism towards colleagues and customers is not dealt with, and the atmosphere is awful now.
AIBU - let it go, get on with your job.
YANBU - yes, take it further, this is a hill to die on