Vodafone  Not Canceling  the Extra 50GB of Mobile Data Purchased Accidentally

I recently bought an extra 50GB of mobile data from Vodafone without meaning to. Even though I told their customer service about my situation, they told me there was no way to cancel this purchase. It's annoying to run into a policy that won't bend, especially since I have unlimited mobile data and won't be able to use this extra data. It's funny that it's so easy to buy extra mobile data—all it takes is one click—but it seems impossible to undo an accidental purchase. I'm annoyed and unhappy that there is no cancellation option because it makes it seem like user convenience is not important to them. To see a well-known phone company ignore the need for a more customer-friendly way to handle these situations is disappointing.