I'm kinda surprised they don't voluntarily allow courts to make these tricky decisions for them.
Perhaps even offer to pay court costs.
They can say:
> We suspended your account for violation of XYZ rule. You can appeal internally, and if that is denied, you can ask a court to rule on if you broke this rule. If the court finds you did not violate the rule, we will reinstate your account. We will provide any data from your account to the court to make its decision, including proprietary data that we cannot reveal directly to you, for example data about other linked accounts.
Perhaps even offer to pay court costs.
They can say:
> We suspended your account for violation of XYZ rule. You can appeal internally, and if that is denied, you can ask a court to rule on if you broke this rule. If the court finds you did not violate the rule, we will reinstate your account. We will provide any data from your account to the court to make its decision, including proprietary data that we cannot reveal directly to you, for example data about other linked accounts.