Wrongly banned

Hi all, so my account was banned a few days ago due to cheating. I’m not a fantastic player my stats will show this, and I’m not a cheat or do any other sort of gameplay exploits. I’ve gone through the my cases option to try get the ban looked and they have came back to me and said it was cheating and that I can’t contact them again that way. I have now asked for some sort of proof and what they have collected to show I’ve cheated as I know there’s nothing. But after doing some digging online realised what a “Smurf” account is and my gamertag contains the word Smurf due to my real like nickname “sounds like my surname” so I now think that EA have banned me for that. Does anyone know how I can now contact them to try get the ban removed so I can play apex again? Also my gamertag containing the word Smurf do I now need to worry about my other game profiles