Very annoyed and awfuly dissapointed with Vodacom Services

im deeply disgraced about your company services .. years ago i had a contract of which one of your agent called me and convince me to take not knowing its a trap, fine i am agreed then airtime of about R 50 was sent to the account only after 6 months i start not receiving the airtime i inquired about it , the respond was will find out for you . Following month they deducted again but no airtime received i did a reversal hoping they will call me to fix the problem. Then they remained quite for monthly .. then suddenly last 2018 they called me saying i have outstanding balance of around R 250 with then , then agent was very rude i asked her to sent me the billing statement as to why am i owing hence i am not receiving the airtime, she dropped a phone on my ear. Then early this year the same lady called again i asked to speak to her supervisor she told me she is not supervised , i asked for the manager.. she rep**** by saying she's the manager .. then she told me she handing me over( gosh.. there i am handed over for what reason.. she left me shocked). As now i checking my credit record they tell me i am listing by Vodacom owing around R 1000 can someone with manners for the clients assist me here ... very annoyed with money ******** company of yours.