We think saying thank you is really important, so THANK YOU*
We'll be in touch very soon to go through your message.
* THANK YOU
Thank you shows our appreciation and conveys our gratitude. But more than that, it is a sign of respect to the person who has helped you (or given you something).
It is an indication you do not take them for granted, and an acknowledgment that they matter. And that is why saying thank you matters.