The solution is to surf your site weekly or bi-weekly and click on every link on every page to see that the material is presented properly and the content is current. Disappointed prospects don't come back. Unfortunately you don't always get what you pay for in Internet design. This is part of a standard template, it's a good design idea but it shouldn't be charged for as an original creative effort. It would be wise to have your Web designer create templates for you so you can update the text yourself on your page.
Web design is like office or store remodeling.
It the public presentation of your business. The bottom line is that the site, like the remodeling project, will cost more than you hoped.