Thank you duck , all work being done in the background in this case is appreciated. Although fairly late to this forum, I also complained to the FCA several weeks ago.
They can take their time getting back to you, as long as you have received an acknowledgement (automatic reply) you are in the system. My initial complaint was answered in 3 weeks (with a deferment) and 6 months down the line it is still sitting in the FCA's office. Not an issue since all complaints are currently deferred pending completion of the investigation.