Hello Tim,
I am not a professional, but I work closely with employees of a department of a bank that deals with the collection of outstanding claims.
There are only two types of people:
1) those who care (and then you wouldn’t have to write it like this) and
2) those who don’t care and time is money.
Even if it were the case that a new title is required (even with a name change the person remains the same). However, I am not a lawyer and cannot offer you any advice, but this situation stinks to high heaven!
The thing with factoring is, even though I brought it up myself, of course nonsense. I thought you had understood that.
I really don’t understand. All alarm bells should be ringing for you. Don’t wait a minute. You don’t play with money.
Google "court bailiff should seize in the state chancellery" and read the article from Westfalenblatt. So either he pays voluntarily, or not at all voluntarily. So get moving! He will laugh at you if he reads this here.
PS: Such a title costs about 150 euros and 2 hours if you do it yourself. If a lawyer does it, it would probably cost about 1,000 euros, which then stick to you if the other party does not pay.