Whistleblowing does not cover complaints of a personal nature of the whistleblower.
Within the whistleblowing form you will find a list of topics, use one of these. For further details you can consult the Whistleblowing Policy

Reports based on suspicion or gossip cannot be considered worthy of protection, as it is necessary to take into account the interest of third parties who are the subject of the information in the report and at the same time avoid the administration or body carrying out internal inspections that risk being unhelpful and in any case costly.

Finally, the requirement of truthfulness of the facts for the protection of the whistleblower remains in place.