It would appear that putting things on paper and into the chain is the only way ahead. Phone calls and emails don't seem to be working, or registering within the complaints system - ergo, the Command can happily ignore them, as they are not "official". Rest assured that the RN will be going paper-official as soon as it goes wrong for any of us - we are looking and learning!
Confidence in the system is not good, with less than 120 days before we get it.