I created a virtual assistant and linked it to 1 of the 10 cell phone numbers that VAPI provides for free, but when I call that number a man appears saying that the number is unavailable. I still have the 1000 free call minutes and why isn't it working? https://cdn.discordapp.com/attachments/1211484481848873020/1348275876524986429/image.png?ex=67cedf42&is=67cd8dc2&hm=2ff5e9ebd0a8d02bde6e8653bc81e5b2dc6580cef458a9f91ea116c9a90e32a1&