IVA Victim, you are quite correct in highlighting the lack of a complaints procedure on GT's website. They also omit reference to their IP's governing body in email and hard copy letter footers. I believe both are required by their regulators.
And, yes, I think it is important for those seeking IVA's to see "warts and all" how we each deal with and get service from our respective companies. We all know the money in these big organisations goes into signing us up in the first place and it is important to be able to get a flavour of the ongoing service.
However, we must also remember that these delays, infuriating as they are, are down to one department of GT and do not reflect on their general handling of IVA's as a whole, which, in my short experience with them, they seem to do very well. They are also down to a peculiar set of circumstances, which are affecting other firms in much the same way -- and "work arounds" are being investigated and implimented. It is not just GT in the mire here, and I don't feel GT should be carrying the buck for this.
However, for such a large and prestigious organisation their handling of this particular crisis does bear scrutiny and I hope the "powers that be" within GT see and learn from this debacle.
Finally ... I think Merlin was politely alluding to the fact that, on the forum, we are going round in ever decreasing circles and getting no-where with this. The problem has been highlighted numerous times, and we can only repeat the same answers, I am afraid.
I am confident that this, too, shall pass

My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014