Vodacom no longer sends invoices - with zero communication about this

I've been with Vodacom for probably close to a decade now. I've had one very bad experience but otherwise status quo and I am just counting down the months to finish my contract and not renew. Now suddenly Vodacom has stopped sending monthly invoices with ZERO communication about this. If I was not the type of person to notice these things, I'd miss bill payments. What a weird and horrible thing to do for customers... just simply stop sending monthly invoices.