not able to accesss business address page

Hello, I opened this case 47 days ago (9438380132).

First problem was : System wasnt letting me to add bank account in Belgium Marketplace where i recently started selling. (actively selling for 3 years in other 12 marketplaces). Problem was: On the bank account page of Belgium ML, bank country drop down menu was showing only Taiwan and UAE countries weirdly. Therefore, i cant add my bank account. All my other EU marketplaces are link to one bank account which is a Belgium bank account ironically. My bank is located in Belgium literally and i have a Belgium Iban yet Belgium is the only marketplace i cant add my bank account. Anyway I shared the screenshot where i can see only Taiwan and UAE as the available bank country list, result was : "You dont have a business address saved in your Belgium Marketplace.Please update" Thats weird, because i have one and only business, and that should be an info which is under main account not individual marketplaces. My all other 12 marketplaces dont have any issue about my business address. But Belgium ? Anyway when i went to Belgium Business address page under account settings, I am getting another error page. Even clicking that business address button is giving me that error. I sent that error screenshot this time and waiting like over 30 days for Amazon to understand why ? Its ridiculous amount of time for such a simple case. Cant amazon simply mirror my business address from another marketplace ? In stead of spending multiple team's time, cant they go and just update my business address on the back end for Belgium? I mean not even update, they will just take from my main account.

Here : https://issues.amazon.com/issues/D115521448 - an amazon team member is already confirmed that they can see my addresses and address is not the problem. I dont understand what is the problem. I am getting sales in Belgium and shipping them but cant get paid. Need your urgent help. thank you.