Looking on the internet deeply has found these results:

please let us know is the most popular phrase on the web.

please know your view 10 results on the web	please let us know 15,090,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	If you plan to arrive later, please let us know. In that case, please let us know by E If you have problem submiting payment in the timeframe please let us know. If you experience any delays whilst travelling, please let us know. Instant online reservation capability on your website is an optional service, so please let us know if this interests you (read below for more information). mail. If there are rats in your home or business premises, please let us know. When you have got any other need, please let us know.

please know your view

10 results on the web

please let us know

15,090,000,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

If you plan to arrive later, please let us know.
In that case, please let us know by E
If you have problem submiting payment in the timeframe please let us know.
If you experience any delays whilst travelling, please let us know.
Instant online reservation capability on your website is an optional service, so please let us know if this interests you (read below for more information).
mail.
If there are rats in your home or business premises, please let us know.
When you have got any other need, please let us know.