@Abigail381
So sorry to hear this...
Unfortunately, if you allowed the management company to list themselves as "owner", then even when you try to create a new account with Airbnb, they will flag it as a duplicate listing in violation of their Circumvention Policy. Airbnb can see the new listing has the same address (and other flags) and this is in violation of their policies.
Owners should never allow a managment company to name themselves as owner on a the owner's listing for this reason. If a management company insists on doing this (most do, as they want to keep the reviews), then walk away. It is much better to hire an experienced Co Host or Short Term Rental Consultant to assist you with managing the listing.
I usually recommend Hosts list on another platform and keep trying to appeal if they want to. If the previous listing had good reviews associated with it, then you might try that angle, as the Circumvention Policy refers to trying to get-around negative reviews on the original listing by creating a new one. If that is not the case, you might try that as long as the original listing had good reviews:

Circumvention Policy
https://www.airbnb.com/help/article/3566