Multiple posts likely are not reasons of your permanent ban, like LoyceV said, if it is the first time you banned. There are three times of temporary bans before you get permanent ban in case it does not come from plagiarism.

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Who knows you did not plagiarise? I don't spend my time to check your posts because most of them were not written in English, but others might check your post history. You should wait for hours, then someone will point it out.
If you actually did not plagiarise, it is good because you will have chance to see your permanent ban switched to temporary ban. Just wait for more proofs.