Looking on the internet deeply has found these results:

Please let me know if you have any questions is the most popular phrase on the web.

Please let me know if you have any query 132,400 results on the web	Please let me know if you have any questions 14,460,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
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Please let me know if you have any query

132,400 results on the web

Please let me know if you have any questions

14,460,000 results on the web

More popular!

Well, please let me know if you do find it.
Please let me know if he gets any worse.
Please let me know if anything is uncomfortable.
Please let me know if you do. Then let me get some lottery numbers.
If you plan to make anything disappear... please let me know.
If you leave, please let me know where you'll be.
I hope this review is helpful. Please let me know if you need any further information.
Please let me know if you're interested.

Please let me know if you do. Then let me get some lottery numbers.
I hope this review is helpful. Please let me know if you need any further information.
If you have any questions, please let me know.
Please let me know if you're interested.
She'll get those to you, you take them home and look them over, And let me know if you have any questions.
Let me know if you have any questions.
Well, please let me know if you do find it.
Let me know if you have any questions about this software.