I have icard and flowbank, but not sure about max number of ibans. For daily use i think is better icard, flowbank are more oriented to investing.
Vivid lowered the max account to 3, and in paid versión i belive is still 5.
Not sure for a company, but ftx.us is not only for us citizens, i have a personal account and i'm from europe.
https://help.ftx.us/hc/en-us/articles/4417540969751-Institutional-Account-KYC
I recently had some operations of days back missing on the app, but total was accurate. May be that was the case you mention, if you dont remember a charge, but your total changed...
I asked by chat (works well and quickly) and they said me it was a known issue and it will be resolved soon.
I...
You can withdraw FIAT directly via SEPA on some platforms like nexo, youhodler, whitebit, etc.
Kraken also give you some yield on EUR and USD, but lower.
I contacted today by chat (i had a incoming transaction pending because of verification).
About 5 minutes later verification suceded.
So may be a chat helps speeding the process