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).
Phone Orders: version 3.2.4, separate page for sales agents (without access to “wp-admin”).
Advanced Order Export: version 2.1.1, new format – PDF, fixed some vulnerabilities
Phone Orders: version 3.2.3, use our(free) discount plugin to apply bulk/roles/others discounts
Dynamic Pricing: version 1.5.2, complex cart condition “Product Combination” – check some samples
Free plugins are available in official WordPress repository.