How is this possible???

Dear Vodacom. I have business phones with you as well as 2 private phones. Latter phones are used for receiving calls, Whatsapp and very little prepaid airtime. I NEVER EVER purchase data for these phones, I repeat NEVER EVER. They are mostly connected to home Fibre WiFi. I never attempt to use mobile data. Yet EVERY DAMN month you inform me that I've used 1 or 2 cents Out Of Bundle Data. This is an absolute lie. These phones haven't connected to Mobile data for years. At my age you may not bankcrupt me financially, but as sure as hell, you'll irritate me to the next service provider with all phones I use differently. You're a tech company, please sort it out. One previous instance was sorted out about 2 years ago and I am happy with that.