We created and support following plugins for Woocommerce:

Advanced Order Export, Phone Orders, Advanced Dynamic Pricing

Try demo or submit ticket to helpdesk (not 24×7, but free users are welcomed).

Recent changes in Pro versions (these versions already include all changes made in free versions).

December 5th
Dynamic Pricing: version 2.3.0, Product Collections added to cart conditions

December 4th
Order Export: version 3.1.1, core changes made in free version 3.1.0 and 3.1.1

November 26th
Phone Orders: version 3.3.7, a lot of interface options , settings tab “WooCommerce”

Free plugins are available in official WordPress repository.