Riccardo, Oh Riccardo, how do you land yourself up in this kind of sh!t everytime and every job you take on. Surely somewhere through this is a lesson for you to be learned.
You must be one of the best experienced pilots with the lowest actual hours flown. And everytime you return for more.
This is Africa my brother, not for sissy's, our pilots are very brave, money is in short supply because often uncle Sam's payments/donations/aid is late, and Vodka or Palm Rum is cheap.
In Africa you must fly for the love of it and the passion (Italiani sembrate avere molta passione!), not for the love of money! What is money after all, you cant take it with you, and you wont get out of the Congo alive anyway.
Use the opportunity to build your hours and contributing to a good worthwile deserving cause.