I currently have 2 payment methods Terms & Credit Card Saved (only available to a my wholesale customer group) that I have $150 minimum order threshold set. However, if a customer from that group gets to checkout with an order less than $150, it doesn't show a notification or anything telling them to order more, it just leaves the payment field blank (doesn't offer any methods) and the customer gets confused.
I use a one-step checkout module from magestore.com and was told to place the message into and to have it check the subtotal before showing the message.
Unfortunately that's a little over my head with php.
Anyone have insight on how to implement this or suggest any other methods?