She should appeal the declare, because it's not valid.
The declare clearly states that the suppressive act she is accused of is the demand for the return of fees.
Dorthe Mai SP Declare wrote:
Demanding the return of any and all fee paid
However in the prelude, it is made clear that she requested a refund of her donations, not fees. Legally, there is a clear difference between what is a donation and what is a fee. A donation is a gratuity, without strings attached. A fee however is made as part of a binding contract. Demanding the return of a fee might imply a breach of contract. However, as a donation is a gratuity, asking for the return of a donation raises no such considerations.
Quite apart from the question whether demanding the return of a donation gives the (ahem) 'church' the right to declare a person 'suppressive' (complete with the implied constraints on Dorthe Mai's freedoms of association), she quite simply hasn't committed the act suggested, of demanding the return of 'fees'.
It would be an interesting test of Scientology (choke) 'justice' to see whether this invalid declare could be successfully appealed.