单项选择题

Try our new "Call Right" phone service, and get the first year’s 10ng distance calls for free!
Hard to believe ？We are celebrating our 10th birthday and would like to extend an invitation to everyone to try our amazing new phone service and get the first year’s long distance calls (to anywhere in the world) for free! The retail price for this package after the first year — will be $59/month. We want to say thank you for helping us become the number-one phone company in our region.
The first 1,000 customers will also receive 2 state-of-the-art phone sets, which will optimize the "Call Right" experience. The sets can be used for your office or in your home. Please see our full page insert for full details.
Contact CRW Phone Co. immediately to take advantage of this amazing offer!
Customers in Lakefield Call Toll-Free 1-800-511-1111
Customers outside of Lakefield Call Toll-Free 1-999-255-1902
Extended Invitation for "Call Right" phone service, and get the first year’s long distance calls for free!
Due to the overwhelming response to our recent ad-offering 2 state-of-the-art phone sets when signing up for our amazing new services for $59/month — we are pleased to announce an extension of this offer to an additional 3,000 customers.
We knew that this offer was irresistible, but within the first day of the ad, all the free gifts were gone. And to be fair to more of our loyal customers who have helped in our success, we are happy to announce that we will continue this offer to an additional 3,000 customers.
Thank you for your responses!
To take advantage of this continued amazing offer, please contact the CRW Phone Co. right away.
Customers in Lakefield Call Toll-Free 1-800-511-1111
Customers outside of Lakefield Call Toll-Free 1-999-255-1902

What is the main reason for the offer being extended ？（）

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