There are a few potential reasons your customers might not respond to your WIIFM (What's In It For Me) approach. One possibility is that they don't see how your product or service can benefit their business. Another possibility is that they're unsure how your product or service works or don't understand its value. If you suspect that either of these might be the case, then it's important to take the time to explain the benefits of your product or service in greater detail. Explain how it can help them meet their goals and solve their problems. And make sure you're speaking their language – use terms and jargon they'll understand. If you've already done all of this and your customers still aren't responding, then it's possible that they're not a good fit for your business. In this case, it might be best to move on and focus your efforts on other potential customers.