get a restraning order against them
Pay her back of course.
If your ex is bothering you or harassing you get an order of protection or go to the police.
You cannot stop the repo company from harassing you unless you pay your bill. The only thing you can do is try to ignore them.
tell her
tel him to please stop or tell your parents.
Feed them their own children, in a minced meat pie.
Throw a cod fish at them
The problem is with the new lover, who for some reason thinks harassing you is worthwhile. Disregard the texts or block them. Do not fan the fire.
i don't know! stop harassing me!
Get a police order of protection
He can stop and interact with you if he is investigating an unusual occurrence. "Harassing" has no meaning.
You need to contact your attorney about having them stop. There is no law unless you have declared bankruptcy that they have to stop.