dhara16 Jan 2014 16:49
You are reading the email sent to you in the wrong way - this is the crucial phrase:
"....automatically transform into the new US line". In other word, your XEN shares WILL become GSL consolidated shares (and eventually XBIO shares) on 23nd January, UNLESS you wish to sell all or some, in which case, they are telling you to do so by end of trading on16th, in order for the trade to complete before suspension after trading hours on 22nd.
So if you wish to have your shares convert to GSL shares you need do nothing, it will happen automatically.
What you DO need to do is, as Mathsprof said, make sure you find a new broker who CAN trade XBIO, and arrange to eventually move your shares to this new account when they have been issued by your existing broker (I was told that will happen on or around 7th February). To find a new broker able to trade OTCQB, refer to previous posts here, where this has been discussed extensively, including today. For what it's worth, I have gone with Sharetrade.co.uk.