Not Clear on the Concept

Got this from the hotel at which I recently stayed:

By completing this survey, you may be contacted by the hotel to help improve the quality of service provided. We sincerely thank you for sharing your opinions as we continue to do our best to make each stay enjoyable.

So, so you send me spam and if I help you out, my reward is that you’re going to bug me more? Could be worse, though. They could be telling me it’ll take 5 freaking business days to remove me from their email list.