Ouch, sounds like a serie of unfortunate bad luck indeed... Thanks for your answer!
I used FDJP (
http://www.fdjp.com/) once to attend Namie's LIVE STYLE 2016-2017, back in 2016 (7 years ago!!)
Got a fanclub e-ticket, first row in the first level balcony in Toyama.
I can personally recommend, great service but a bit more expensive obviously.
You can still ask for a (free) quotation and see if they can help.
Good luck !