Worst customer service received from Financial Advisor

I am disappointed and very unhappy with the service I have been receiving from my financial advisor, Matthew Wilson. I have requested a change to my life policy on the 18 June 2021, to date this has not been done. I have called him numerous times and messaged him to follow up on my query. He does not respond to messages, he does not answer my calls when I call him, and he does not call me back. I am shocked that something that was supposed to take a week to 2 weeks to resolve has gone on for 2 months without a resolution. Please can I get assistance on this matter as I am at my wits end.