Suspended account /Extreme bad service from Vodaco

Vodacom's service is pathetic, I do not receive invoice on a monthly basis and the only alert is when they suspend my account which I would pay a certain amount e.g R800,R900 etc. To date I have never received a reconciled statement of what is happening on my account. Now they have suspended my account on 11/01/2016 without giving me the invoice. I paid R700 on 12/01/2016, whereafter i contact vodacom and spoke to Jabulile,Carl, MacDonald,Kgosi who promised me that my account will be opened after 2 hours of 12/01/2016, which was a lie obviously. I have to explain myself everytime I speak to accounts department or their call centre. On 12/01/2016 after I spoke to Jabulile, she emailed me the invoice reflecting an amount of R658 outstanding which I informed her that I already paid R700.00. I want someone competent at Vodacom to provide me with a reconciled statement of all monies i have paid them and why the package they put me in is so expensive whereas I use it only for whatsapp. SOMEONE PLEASE HEELP I am very very frustrated.