Banned from MUT

So I've just been banned in MUT, and I can't see anything that I've done as being unethical. I buy a lot of cards during market crashes, and sell them after, but isn't that what any smart player does? As a "No money spent" player I've learned how to take advantage of this combined with solo challenges, house rules, weekend league, etc to get the best possible team. I do spend millions of coin per week at times and make around a 20% profit after tax, sometimes more for good snipes.

So does this warrant being banned without warning? Are players really forced to spend money every week on pack bundles and can't use this method of buying and reselling cards? 

Is using the madden 21 companion app considered unethical? If so, why would an app be able to be linked to the game if it couldn't be used as designed?

I would love someone's insight, and honestly I really just want to know the quickest way possible to get access to this game that I love, some answers on what I've done that is considered unethical, and I will gladly stop if given access again.

I did submit my concern on EA's website on Thursday and haven't received a response. I also messaged @EAhelp on Twitter that day and haven't received a response there either. 

Thank you madden community for any help you can provide. 

Thanks, 

pick6ftw

@pick6ftw