Dear [Customer Name],
 
Thank you for choosing [Company Name] for your recent purchase/service. We value your business and are committed to providing you with the best possible experience. As part of our ongoing efforts to improve our products/services, we would appreciate your feedback through this short survey.
 
Please take a few minutes to answer the questions in the survey honestly, as your opinions are important to us. Your responses will help us understand what we are doing well and where we need to improve. Your personal information will remain confidential and will only be used for research purposes.
 
Here is the link to the survey [survey link]. The survey will only take [insert estimated time] to complete.
 
We appreciate your time and feedback. If you have any additional comments or concerns, please do not hesitate to contact us.
 
Thank you again for choosing [Company Name]. We look forward to serving you again in the future.
 
Sincerely,
 
[Your Name]
[Your Company Name]