Those who are willing to lend him money because of his title are willing to do so because they trust his title and know that they can go to the lamp bearers to complain if he defaults on his debt.
As for those who want to give him money, they are even more than those who would be willing to lend him money because the money they are giving him is not free. They want some assistance in exchange for that money, so the money will be a bribe.
Of course he can't take their bribe. He has a reputation to protect. So he can only borrow the money at an interest rate of 10% every month.
That is an exorbitant interest rate. But that's the best he can get.
They won't give him a better rate because they are hoping he won't be able to pay. That way, they can use the debt to gain a hold on him and force him to do things for them.
He didn't have a choice, and he didn't mind the exorbitant rate because if his offer is accepted, he will be able to pay back the loan in less than one month.
