I have negative experience with SE
Withdrawal Error waiting 4 hours and again Withdrawal Error waiting 4 hours .....
Support answer "Hello,
This withdrawal will be checked, when status will changed to 'cancel by admin' your coins will returned to your wallet.
The problem may be in node of this coin which does not allow to withdraw such huge amount that's why node returned 'withdrawal error'.
Please a split the amount for avoiding next errors."
I'll changed amount for 2500 and have the same problem...