I believe instant withdrawals already long gone but it does not mean they have take really long just to let you withdraw some amount. I tried to withdraw every montu and it always be in my wallet in no time, almost instant but of course with thr highest fee as well. Dont you think that by using low fee, you are expecting such a fast withdrawal. It will never happen
He says that his withdraw needs manual verification and that has nothing to do with transaction fees offered by bitsler.
I am on bitsler for more than year and have never had any problem on withdraw, maybe it's new that they do manual verifications on new accounts. I think as you level up, you won't have any similar problem.