Rude and unprofessional staff

I appreciate you trying to call to collect a missed payment. I acknowledge that and I have made an arrangement. I have accepted that you call every 2 minutes and I'm used to that. I however don't appreciate the rude and disrespectful treatment I received from a Nandipha that called from collections.

You do not call a client and cut them off just while they're still talking. That sheeben behavior must be called into order. I have had a great business relationship with you thus far. Please train your staff to be able to deal with clients.

Now that we've gotten here, please forward me a settlement letter so that we can part in peace. I can not deal with such rudeness and unprofessional behavior.

I'll appreciate your prompt response.