[techjuice]

Best thing you can do is keep on moving on to gain new customers. If you have something they want they will buy, move those that disappear into a contact later group and reach out at a later time. Remember every pre-sales customer has a cost/time value. If they are not bringing you in money move on to those that do so you can further improve the SaaS company and maybe they will come back when you have what they are looking for.