Persistent Vodafone Spam Messages

As a Vodafone customer, I've been dealing with an ongoing problem in which I receive messages from various +44 numbers every day. Despite the fact that I have reported each incoming message as spam and blocked these numbers, they continue to harass me with messages from different numbers. This is a very frustrating situation. When I contacted customer service about this issue, they were unhelpful. They claimed they were powerless to intervene. It's perplexing how they can collect payments smoothly while appearing helpless when it comes to protecting their customers. When a payment is a day late, they hound you with calls, but when you seek assistance to resolve an ongoing problem, they say their hands are tied. It's truly perplexing that an international company that earns hundreds of dollars per month from its customers can't help in this situation. They profess to be world leaders...