Thankyou threadi for the suggestion..
Would prefer to do away with any emails as its a uphill battle with companies changing how they classify spam. In saying that, we have found the solution through gmail support. Needed to update the MX Records to have their signature in two records, but would prefer to do away with any email correspondence and modify the “Order Received” page to have the activation link or to display a new activation page for the student.
So just looking at having the activation link displayed on the Order received page.