资料题：When most likely did Mr. Fern join theSaveSmart program?

Office Official: We've Got It AllFrom state-of-the-art computers and office furniture to paperclips and presentation binders. Office Official has everything your business needs and so much more! We guarantee that our friendly staff will help you find exactly what you are looking for every time you shop with us. No time to come to our warehouse? No problem. Starting today, Office Official promises free next-day delivery within Brownsville city limits, and same-day delivery for orders placed before 3 p.m. for only $5.95! Furthermore, this May, members of our SaveSmart program who order more than five of any one item from our catalog will qualify for a 20 percent bulk discount before tax. Visit us at www.officeofficial.com to learn what else is new! MEMODate: May 2 To: All staffFrom: Thomas Fern, office manager Subject: Office SuppliesWe have been spending too much on office supplies and need to make a collective effort to reduce our costs. The following are changes I’d like us to implement as soon as possible.1. Get an Internet fax service. We spend far too much on paper, ink, toner, and maintenance for our fax machine.2. Keep all the supplies in one place. When the items we order get distributed around the office upon arrival, we forget we have them. We repurchase them unnecessarily the following month.3. Look for local deals and promotions. If you flip through the local paper, you’ll find that discount programs are everywhere. I plan to join one at Office Official at the same time as I make our next order. If you have any other thoughts on how we can cut back a bit, please feel free to share them with me.Thank you for your cooperation.  INVOICEOrder date: May 9Due date: May 23Name: Thomas FernTelephone: 555-2350Address: HRF Consulting Co., 645 Mason Tower, Suite 4, Brownsville, TX 78520 SaveSmart no: 0094-933-2234  Thank you for your business!