If you automated gameplay on your PC, and play other accounts from that same PC, blizzard is entitled to susped whatever active account without warning if they feel the need.

If you've used automated gameplay in the past and Blizzard 'tagged' your IP so to speak, it might be so that this suspension is still from the times you used autoit. In which case, as long as you stay straight, you shouldn't run into problems in the future.

Still, I'd email accountreview and ask for some clarification if you aren't sure what you did wrong. Either way, keyclone itself isn't wrong.