chase up
phrasal verbPart ofchase
chase up — phrasal verb
1. To contact someone in order to remind them to do something they have not yet don
1.phrasal verb
Definition
To contact someone in order to remind them to do something they have not yet done, or to get information that has not arrived.
Example
I need to chase up the plumber — he promised to fix the pipe three days ago and has not come yet.
Could you chase up those invoices with the accounts department and see why they are late?