It is not possible to appeal a decision to suspend a developer account. This is a deliberate policy: developers are given deadlines and opportunities to meet Vanelton Media's guidelines before any suspension happens.
In other words, a suspension isn't a first response to a mistake — it only happens when a developer shows no intention of complying with the platform's rules and quality standards, described in What are the design and usability requirements for publishing an app?, after having had the chance to fix the issue.
If you believe your account was suspended in error, you can still contact usersupport@vaneltonmedia.com to ask for clarification, but be aware that this is different from a formal appeal and reinstatement is not guaranteed.