Bad service accounts and no response from anyone

Good afternoon On the 11th of November i spoke to Siyabonga and i have advised tge agent i was in process of moving from a flat to a house. And i sent a mail to him and cancellations. He gave me an amount of R685 that i will be paying at the end of this month. Now i got a statement giving me a complety diff amount. Ive been tryjng to speak to accounts since friday the 26th of november and NO ONE is picking up the linez. They dont even respond to any of the emails. I never had issues with SADV so what is going on guys. Come on.. is there no one working. Can no one pick up or reply to a person. This is really bad service. If you do reply to this bad review go check my emails for my contact details. Im not repeating myself.