Handling Those Who Do Not RSVP
One would think, understanding the importance of an RSVP people would respond. Unfortunately, that is not always the case. Weddings are expensive and most decisions made are driven off of that one question, how many guests? Luckily, most caterers understand that until the RSVPs come back you can only give a guestimate for the number of attendees. They will allow you to plan for the number invited and adjust as you get closer to the date. Typically 2-3 weeks prior to the event, you will be required to send your final head count for which you will be charged.
The best way to get this final count is to rely on the RSVPs. So what do you do when people don't RSVP? First, off-set your RSVP deadline about 1-2 weeks before the final headcount is due. This will allow you to follow-up where needed.
Follow-up The last thing you want to do is pay for food and beverages for people who will not attend, so start following up through your friends and family. Ask your mother to give a friendly phone call to those who have not responded and feel out your friends. If you have a friend who has not responded, politely ask mutual friends if they are planning on attending and how much you would love to see them.
It is a tough situation because there is a fine line between gathering information and crassly harassing people. You don't want someone who is attending to feel uncomfortable at the party but you also need to know how much food and beverage to purchase.
At the end of the day, when you cannot get a final answer you should plan for those who did not RSVP to attend and hope for the best. You would never want a guest to arrive and not have food and or beverage to accommodate.