Disgusting service after a service is performed fo...

Disgusting service after a service is performed for Mustang Village Apartments In Wichita falls Texas I still have not been paid for an invoice submitted in January 8, they tried to get me to lower the price so I did and still haven't been paid there account manager Carly is very rude will not return phone calls or email and accuses you of yelling and being rude when you are explain things to her. Frustration and yelling are two different things, I've been an account manager before and you know if you owe someone money for months they will be ready to be paid don't want to hear excuses! Since you guys are unprofessional I'll join in too, Pay Me or I'm going to Sue you I will be sending a monetary demand letter along with a date of intent.
If this kids didn't pay rent you'd be ready to evict them, I have employees and bills I have to pay this is beyond me.