I would contact your help desk since it's a company phone. You shouldn't have to bear the cost of supplying chargers and cables. They will give you a compatible charger, and probably two, so that you can have one at home and the other at work. If it's a phone problem, they will replace it.
I have a company issued iPhone that they completely support. I have never had a personal iPhone or any interest in one. They provide all the accessories I need for it. I've never spent a dime on it.