This issue pops up from time to time. As far as the receiving the portion of your withdraw. Why this happens is as folks continue to mine and deposit very small inputs say 5 coins over and over again we build up a ton of small inputs. When say a bigger trader comes along and make one large withdraw. All of the tiny inputs have to be combined to make the large withdraw of say a million so that could be 200,000 inputs for that one transaction. Whats this do it typically hangs the wallet so we implemented a "fix" that will keep making your withdraw smaller until it sends. We also then get alerted and work on combining inputs internally so that we do not have the problem in the future (this takes a bit).
As far as delayed withdraws there are many reasons this can happen. Password resets are an automatic 24 hour delay. Something else in your account flagged it as suspicious Fraud prevention is a large portion of these.. You live in an OFAC nation... The list is actually quite large. We work with everyone that puts in a ticket on these issues and 99% are easily resolved. I have contacted the new forum member that started this post and he has yet to respond to me on this issue, also common with these threads.
Best course of action is to start a ticket and your issue will get handled.
edit: OP of the threads funds have been released. I should also mention that TOR though great for anonymity raises flags as its our goal to make sure the right person receives their coins.