Hi again,
I finally figured it out, so I’m gonna share it here for people who could’nt find a solution thanks to the help from the staff 
Simply try to verify your account by using your mobile app AS in computer mode : Option => Check the box which said “use in computer mode”
Then try to log in on your uphold account as usual, It worked for me.
You can close this topic, thanks to Ezio for trying to help, but no thanks to the bot responds from the modos.
Great app anyway, I recommanded to many of my friends.