Thank you for replying! I hope you and your colleagues will learn from the corrections I made. I find it frustrating that I (an unpaid volunteer) has to correct the mistakes made by a commercial agency.
I went to check at the shop, and found it has replaced a flower shop at a slightly different location than the new node you created (i.e. it was in the wrong place). I copied the tags to the node of the flower shop and deleted the new node you made.