VERY ANNOYED CUSTOMER

About a month or two ago I called Vodacom about subscriptions that take my airtime without my knowledge. They called and they guy that I spoke to said he will send me contact details of those companies that take my airtime without my knowledge, this was after I screamed at them about the first time this has been happening a countless times. They refunded my airtime back but as it may seem that they didn't stop them or do a further investigation on how to block these subscription companies that sneak in and just deduct whatever airtime they want to take. Yesterday I got recharged with R30 but surprisingly I don't have airtime now. This needs to be sorted out can't be afraid to recharge because of it.