are you sure you didn't do it again or something that got you permabanned afterwards? Doesnt matter if it was on a smurf account. Family share accounts are automatically linked to the main account, which means they receive the same ban
I only found this note from may 2018 where you got a timeban
http://prntscr.com/tz1j3f
I was abusing the glitch which was loading US Rangers on Clown Cars (or something like that) and clapped Hetlir's cheeks. I was doing it for a day; and the next day I was banned. Relic did not send me warning; I even thought the glitch was a feature because it was easy to do. I just unloaded truck crews, loaded US Rangers, and processed to massacre krauts.
Anyway, I could not get back into the game so I should not get any further ban.
Do you know anyone with who I can contact because none of my emails sent to relic got replied.