Rosie does not currently support a feature that allows a customer to change their Order Type.
It is possible for the customer to request a change in Order Type by contacting the Store where the Order was placed.
If the Store approves the Order Type change the customer will the need to contact Rosie for confirmation. The decision to accommodate a customers Order Type change request is entirely up to the retailer.
If the retailer accepts the change and the customer confirms the change with Rosie they will then be charged or refunded the difference.