get onto
phr. v..phr. v.. to contact someone to ask for help or to tell them about a problem.
phr. v.. to initiate contact with a person or organization, typically to request information, lodge a complaint, or remind them of a task.
I'll get onto the plumber about the leak.
If the package doesn't arrive by tomorrow, I'll get onto the delivery company and ask for a refund.
The legal department needs to get onto the contractors immediately to ensure the confidentiality agreements are signed before the project launch.
often used when you are following up on something that has been delayed or forgotten.
contrast with 'get on with' (to continue a task) to avoid confusion; this sense of 'get onto' is particularly common in British and Australian English for administrative follow-ups.
I will get onto to the manager.I will get onto the manager.the preposition 'onto' already includes the direction of the action, so adding 'to' is redundant.