Worst data experience

1) Friday 6am airtime balance R4.85, 6:15am recharge R10, 6:16 recharge R12 6:17 balance enquiry: R12 available airtime. I get the 50MB bundle it depletes in seconds! No running apps, no background app open, location services off, no auto updates. Phone settings all on data saving mode. Called customer services to resolve, high call volume message right until NOW since Friday morning! 2)I get 3 options for 1G data for 7 days on my Just 4U offers I load airtime and the offer disappears?? I've come to realize this is just a tactic Vodacom employs to get us to buy airtime through advertising offers falsely. 3) After the hassle with the false 1G offer I purchase 250MB bundle, when it depletes I don't get the normal low data alert like I do with all the other bundles I buy, with this one the service just ran right into my airtime??? I need my airtime back asap!!!