long standing client suffers poor service.

Have had my cell contracts with vodacom for at lest 17 years now-this time round i had the worst encounter when in January 2015 I recieved my bill and on one of my least used phone i got a bill for R2400 for data usuage which i brought to vodacoms acc dept-they logged a query which took 3 weeks to come back to me and tell me that the usage was data which i already new.Went back to the walkin help services at gateway dbn to get the consultant to look into this issue which he relogged the query.This outstanding amount keeps getting added to my bill and causes my acc to go into arrears.Went to to customer services again on the 26th feb 2015 since vodacom had locked my all 4 lines because of the arrear amount-paid the oustanding amnt due-they unlocked it <br> until the 2 March 2015-all lines locked again-now it gets worse-went into customer services gateway today and found out that all my lines are deleted.First time this ever happened.Tried to get someone that can explain how and why but instead i get the response that its the system-bul**** story.Had to pay nearly 6k to reactivate my lines including the oustanding arrears.why did my call limit not kick in-this is vodacoms problem nt me