I had a situation with our local ISP where they injected some banner on each page to let users know they were close to going over their bandwidth usage when the

I had a situation with our local ISP where they injected some banner on each page to let users know they were close to going over their bandwidth usage when they got to like 90%. I reached out to them and said this was essentially a man in the middle attack and that I didn't want messages injected. A week later they messaged me to say it had been removed.