I am not sure whether you or Daxian198402 plagiarized here, not look into two accounts but if from two posts and times of publishing, you are plagiarist in this context.
I recall that you plagiarized, were banned and were given a second chance too.
Not sure but if you actually did it, the second chance given to your account is useless.
Wait!
If two different accounts send you an identical pm, the best we can make out of the situation is that both accounts belong to one person.
I do not think that anyone could be banned based on plagerism committed in private (via pm). I also haven't heard of something like this and I do not think that there is any rule covering that kind of plagerism in the forum.