Complete lack of customer service

Despite requests, I have not had statements since 2013. One arrived two weeks ago and it reflected an incorrect registration number - not one, but two errors in the registration. The automated helpdesk ticket #22559 which I received has an inaccessible url link to track my claim. Trying to communicate through the Netstar 'bot' indicates that I must download the app on my phone - that also is impossible to get up and running. When I phoned, one assistant addressed the issue of receiving regular statements and passed me on to another to rectify the issue the incorrect reg number. She said the system was slow and would phone me back in 5 minutes - that was 4 days ago. Her name was Qwesha and I spoke to her on Tuesday 14/Sept at 16:11