How do I request a paid Membership plugin review?

Is there a marketplace where I can request paid support from someone who knows the Membership plugin well? I would like someone to review the Membership installation and correct these errors:

– Duplicate messages sent by the communications function

– Reinstate a free membership option and remove 2Checkout gateway since it does not support the membership we have created

– Clean up members on more than one subscription (I cannot delete them using standard plugin functionality).

Many thanks

Michael