I believe this is one topic that can never be overstretched because of the continued importance everyday. Even today, I have read about someone who has been trying to make a withdrawal from an exchange site since December 2017 and till now, its still while support is no where to near responding talk less of resolving the issue and the exchange site has been known to be effective. Whether the claim is right or the customer made the mistake, the fact is he could not assess the fund at the time he wanted it which is enough reason for anyone not to store cryptos on exchange sites.