In short: SIMCARD not in device!

SIMCARD not in device! Vodacom billed me thousands, i took out the simcard when realise, since 1 Nov and still not in use and they over billed me again. I logged a query, to get itimised bill to were the data went and for what used for they have to investigate and sent me the itimesed bill - then closes the query and right the amounts on top of goodwill letter, without telling me. Then bill me wrong again, no correspondence, no notification, nothing. They want to blacklist me. Said I must pay R4600+on top of wrong billing they gave me new product on this account don't know how to fix this nobody is able and willing to assist me. Somebody steel my data. in device!