Vodacom never fails to amaze their customers

So, Vodacom made some billing error and decided that instead of processing 30MB to my account, they made a mistake and processed 30GB to my account. Honest mistake I suppose but then after 2 weeks, they decide to take their data back, which is all fair. But does VOdacom have no decency to contact their customers to let them know? The Team Leader who was handed the call decided to try and explain that the error was picked up. An error like this can only be picked up with recon. so this error was picked up and still nobody decided to contact the customer? This service is honestly pathetic!