How can I press a customer to take action on his overdue payment politely but also strongly?
I'm so for this I'm willing to sponsor you. I am going to urge you to do this until you do it, so much so I'll give you money. This is one great urge and press for you to do this!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.