Two days ago I took 6.65 ETH but did not invest in my account and they stalled me by saying there was a technical problem. they blocked my account today. does no explanation. they've stalled me so far and now they've blocked my account. This site is dishonest.
Telling that there was a technical problem is not a reason for you to call them scammer but, if your account was blocked by them, that should be a problem for them. First things first, before you trade on an exchange, be sure to check its review to see if they have a bad background or good.
He did researches, as what I understand from his posts in this thread is that he did make other withdrawal previously which were done without problem and this case is about his last withdrawal. Surely, problem may occur at any exchanges. Even a trusted exchange may have some withdrawal problems, but trusted exchange will inform the users asap once there is a problem and will fix it asap.