Why do I have to confirm my check in when I use placemarks & the correct address?

Yesterday I tried to check in 4 times -- 3 times from places that I have placemarks for & a 4th place where I gave the correct address. My check ins were not recorded because the system sent me e-mail responses asking me to confirm that I want to check in from those locations. I didn't get the e-mails until hours later, so I was unable to check in.

Why does the system request me to confirm that I want to check in at places where I set placemarks for? Isn't it obvious that the answer is "yes" since I used the placemark name? And why did it ask for confirmation when I entered the correct address? Finally, on Thursday I entered an address in Oakland, CA and I received a request to confirm that I wanted to check in from an address in Salt Lake City. Seems like it's a bit wonky.
 
sad I’m frustrated
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