BiteBTC writes that he had violated the terms and conditions, but the user claims that he hadn't violated anything!
Of course, we don't know the full back-story, but judging by the past communication of BiteBTC we wouldn't be surprised if their new strategy was accusing users of violating their terms and conditions.
To read the full story of BiteBTC scammy activities and see the e-mails users received, click here: https://bestcoininvestments.com/scam-bitebtc-blocked-us-on-twitter/
Judging from the sheer amount of current unresolved scam accusations, it is clear that BiteBTC isn't an exchange you would want to use.
Even if there is a chance that they may not selectively scam you while you use them, why take this risk when you've got better alternatives that are available that most likely offer trading pairs that they offer as well, with better customer service and reputation? There is seriously no point in using them, unless you are extremely desperate and a pair is only listed by them, in which case you should be splitting up trades into chunks so that if they defraud you, only part of your funds are gone.
But regarding the excuse that the exchange used - there is no clear way of necessarily telling who's in the right and who's in a wrong in this particular instance. But breaching of ToS as well as KYC are commonly cited excuses for holding customer funds, and imho, no matter what the excuses are, holding funds that are not yours without proper proof is always shady.