[UPDATE]: After 3 days of back and forth with Binance customer service, the problem has finally been identified.
Binance's system does not recognise the standard # for encrypting a memo in the memo field in their system.
I finally put the withdrawl through with a blank memo field.
I've been trying for 2.5 days to make a simple withdrawal of HIVE from my Binance account to my Hive wallet.
It keeps on failing and Binance say there is a problem with the "HIVE network".
As far as I can see Hive transfers are working just fine so the problem must be on the Binance end.
Their customer support has been giving me the run around without them actually fixing the problem for 2.5 days now.
I hate centralised exchanges!