Bad customer service experience

We do good by picking up and making an arrangement these people that work at MBD are **** they laugh at u don’t answer the call also u will say hello once they see that u were hearing them then they disconnect so un professional. Then they make u like a joke imagine I paid for the account and they can’t send a paid up letter because Cell C says that they only received R 1128,95 and R199,23 is shot mind u I paid MBD R1316,61 in full and the paid up letter has not been sent out to me disconnecting call is call avoidance which is a dismissal offence in a call centre and if a call disconnects u call the customer back guess what MBD agents do they laugh at u and it’s like u are an idiot and u are annoying them wen u paid for the debt imagine having to spend R100 airtime calling unprofessional people and ****mers I needed a manger she laughed and she said u need to call back and ask for one I’m so disappointed and disgusted at customer service please tell them to mute themselves as a call comes in I can hear them for a good 2 minute talking they bull**** stories then laugh and answer imagine the bull**** service they give and this has a negative look on MBD collections agents are so professional imagine I need this fixed ASAP