Remove Billing Information Requirement for Products that are Free or Cost $0.00
We use WHMCS and offer a free product (software download); we monetize the software by promoting add-ons during sign-up and later by recommending/suggesting (upsell) customers to purchase commercial support for the software. If they choose NOT to buy support right away, it would be nice if WHMCS had the option to eliminate the REQUIREMENT for these customers to enter billing information since the final product (without support) is free. If the product ends up being free, I don't understand why billing information is required. This could also potentially be useful for other use cases such as selling free hosting plans that are monetized with paid add-ons (i.e. priority support, removing "hosted by XYZ" links, etc).