SUSPECTED CHEATING ?

Only you know what happened and which servers you played on, it is the owners of these servers you should contact. I think it's a plugin, if it's still there or still being developed, that flags impossible stats that flagged you, and you're probably banned from all servers that use the ban list from it. So you have to come up with a really good explanation for these k/h: 3666.67% because as an admin on a server, it's not their responsibility to look up all the reasons why people have abnormal stats or why they've been banned, most of them are just happy that these plugins facilitate the work on the server.