i try to login and it is telling me that many computers have accessed this account .that's because i am playing by an internet cafe ..what can i do i want to play and they system not letting me
You are seeing that error due to playing on too many different PCs within a relatively short period of time.
If you are playing at an internet cafe, maybe it is possible to play on "your" PC? I do understand that may not be possible.
That error should resolve itself after approximately 24hrs.