I had to report a colleague at work for not doing her job properly. She was told multiple times beforehand to do her job as she was not inputting data onto the system but she chose to ignore it. I asked IT for help but they said it is a training issue and to speak to the line manager.
Since then my colleague has ignored me as her manager spoke to her about the issue. She is lying about me at work saying I am not doing the filing, calling me lazy to colleagues and phone my supervisor and was angry about it as she worked out I had reported it.
She knows my supervisor told me what she has said as I had moved the filing from the cabinet and I was only behind with the filing as I am covering tasks for her team! She is now making up lies about him to his manager. I had to highlight the issue of her not doing her job properly as it can impact badly on our tasks if we have missing data we need to give to other organisations or customers.
I have been good to her supporting her carrying out a few tasks 1 day a week as no-one else in the organisation knows how to do them as she had a vacant post in her team. This vacant post is being recruited for this week and I will need to train this person up and handover these tasks as it is not for me to do.
How do I deal with this toxic colleague who has no respect for me and spreading lies about me?