WORST COMPANY.BEING ****** WITH DATA Charges

I don't ever get my bill since taking out this contract...and have absurd debit orders that go off my account from Vodacom without my knowledge. Was debited over R1200 for may without an invoice and when I went into a vodacom was told it's data...HOW THE HELL DO YOU GET BILLED FOR DATA WHEN SPECIFICALLY ASKING FOR THE CONTACT TO BE ON TOP UP WHEN THE GIGS ARE FINISHED. ???? All of a sudden my new statements pop up into my post box and now being billed over R3000? ?... This is ludicrous and almost INSANE.....please ensure that I am not billed this amount as any debit orders that may return due to this will be vodacom COME And take your laptop and ****le a......sick and tired of this nonsense and lame excuses....I want the date money debited on the 1st of May and ensure the R359 gets debited in June. ...