e-commerce feature

Project Description:
We would like to add a new feature on our current website-contact lenses order.
It will involve contact lense specialists verifying the prescription, once the prescription is verified, the system should contact the customer and have the customer choose the brand and quantity, payment method and shipping method. We would also like to ask the customer to estimate how long those contact lenses would last them so we can send out notification to invite them to come back to order new contacts or have the credit card info saved and just charge on the card and send new contacts over.