i also want this feature, in my shop when i add this plugin i am getting orders from new customers but some of them just orders that time and we call them to confirm COD order they say send it we will accept but when courier reached there home then they refuse the parcel and when i asked the reason the just say they mistakenly placed the order or now they dont want the product or they are out of station, because there refuse RTO increase and i have to pay double shipping to courier company.
in this woocommerce smart cod plugin please ad a feature like when a customer want place cod order they have to pay some advance booking money on fixed bases or percentage on cod value so they will think twice before order and only who truly want the product will order. like risk free Cod plugin but that plugin is dead now and not working with latest wordpress
i hope you will consider to ad this feature in next update
thank you