Unfortunately there is no way to follow up on proposals already sent and you can send a proposal only once to a specific member as repeated proposals may be considered spammy. If you don't hear from the investor/buyer, that would mean they have not accepted your proposal yet. If they accept your proposal, you'll automatically receive an introduction and see their contact details in your dashboard. To see the status of your proposals visit www.smergers.com/faq/how-can-i-view-the-status-of-proposals-sent-on-smergers/234/