So, here is my question on this. Since these 1000

So, here is my question on this. Since these 1000 shares did not have the due bill, but when I sold them, it tells me I sold them with a due bill on my side now, I end up being the one owing the due bill.

So, now the original seller which could have been CMF gets away with it, however I am stuck losing a 1000 dividend which I was not getting in the first place on these 1000 shares. so, somehow Fidelity takes them from my account anyways?