Binance complaint: Dreadful service, won’t reset my phone number so can’t access my account

The mobile phone linked to my account has broken and, while I can receive the verification code to log in from my email, I cannot receive the sms code to my mobile that is also required. I opened a case via the chat yesterday and lost the first advisor, Nancy, which then vanished, so I opened another case with another advisor, Fiona. I spent no less than 4 hours on the chat trying to sort the problem. I had to send videos of myself making statements next to my ID, access emails to registration and transaction details and then log I to my mobile banking app a d reconcile emails with my bank statements from 2 years ago. Finally, the hundred hoops were jumped through and I was passed to another team to wait in a queue to have my mobile number reset, only to be told it was a big queue and It would be today before they could sort it. I returned to the chat this morning to find a message from yet another advisor asking me for a repeat of information and documents I submitted yesterday!!! I refused, stating that it was already provided quite enough yesterday to prove I was me and this was my account and thousands of pounds of my hardcearned money I can’t access. I was told that if I didn’t provide a pdf of the bank statement I provide yesterday then my appeal would be closed! I’m not appealing anything!!! I want my technical problem sorted as promised today. The advisor then proceeded to ignore my next 5 messages attempting to elicit some kind of response and a query on how to complain and now the case and associated chat has vanished. I am absolutely fuming. If andcwhen I get this sorted, I will be withdrawing all funds and closing my account, Binance customer service is shambolic, do not use them