Trending @Accenture; How to request for 4k Monitor in Accenture?

I’ve been provided a MacBook Pro by Accenture for design work, but I find the screen size a bit small, and it’s affecting my posture. I’d like to request a 4K monitor through the office.

I’m okay with paying for it upfront and getting reimbursed if needed. Could someone please guide me on the procedure for ordering a 4K monitor? Are there specific policies or steps I need to follow?