Yea I had something similar a few months back. I can only guess what I said to possible offend anyone because they would not give me any information. Not what I said, not what rule it broke, not anything. I escalated to a specialist and got the same copy pasted response. So it was a pointless affair.

You broke an unnamed rule saying something they won't tell you and you should avoid doing it again in the future. Just mind read or something. Such is life in 2022 where literally anything can be offensive to someone.