MWEB please help me

I moved to my new house on 9 February 2023. I informed MWEB of this and requested that they please take care of all the necessary arrangement on the 9th of January 2023. They said all is done. Since 10 February 2023 I have been on the Phone with MWEB for 8 hours & 30 minutes according to my phone log. THE PROBLEM STILL HAVEN'T BEEN SOLVED. I have been told it's been escalated to management, to Openserve and nothing. I have given my B number on the ONT box - that was already at my new house so many times to mweb that I have lost count - and then mweb argues with me that the B number is incorrect!!!! Openserve phoned me the morning of 20 February 2023 and tells me that my profile is still linked to my old ONT box, and that's why I am not going to get my correct speed - still paying for it though. I have had 5 calls - many transfers to departments and 3 dropped calls this morning alone and no one has given me a straight answer. This is the most pathetic service I have ever received in my life and shifting responsibility I have ever experienced. Can someone just contact me and solve the problem. It's 10:33 on the 20th and I have been on the phone already for 58 minutes this morning!!!