Is there anyone that i can contact at HMRC in regards to a Companies application for AMLS?

Is there anyone that I can contact at HMRC in regards to a Company application for AMLS? We made an application in September 2022 and provided requested information in November 2022 and despite various emails to the teams involved I am struggling to get any kind of substantive update and it is almost a year since the original application. Many Thanks

Hi eiliffe,
Sorry to hear about the delay in processing your application.
I have spoken to a member of the AMLS Team who has suggested you send an email to ecsregistration@hmrc.gov.uk, including your company name and Companies House reference number.
Alternatively you can contact the Helpline on 0300 200 3700.
Thank you. 

Thank you, I have being emailing this address for over 10 months with no updates. I have also tried calling the helpline this morning who have also told me to email the same address. I also asked for details to make a complaint or refer this to someone who could assist - the response was not helpful and the website does not assist as there is no option to complain or contact the MLR or AMLS team directly.