How annoying, a malfunction can of course always happen. During the weekend there is no one in the community to help you. Annoyingly, there is no employee present on Monday either. If you still want an answer tomorrow, you can call customer service or start a chat. But visiting a store is also an option, so they can immediately take a look with you and solve the problem.
Paying for something that doesn't work is always annoying. But what it is about seems to me to be the most important thing to know at the moment. As written, from Tuesday someone from Vodafone will be online again in the community and if you want to arrange it faster, call customer service on Monday or visit a Vodafone store.