If you have a question on how to implement something in C# then that is appropriate but this question is simply far too broad and certainly has nothing to do with web deployment, which is the forum you've posted in.
Last fall I did some chatting on a dating app with a guy I hoped to meet. Here’s what: Just after 10 he texted that he was at a restaurant around the corner—and he pulled into my driveway two minutes later. Many of those lies are mild, like under-reporting weight or over-reporting wealth, but some are full-on “catfishers” – which according to Urban Dictionary are “Internet predators that fabricate online identities …
Every once in a while, I found no information at all about a particular number.
That was puzzling until I reached out to Thomas Martin, president of Martin Investigative Services, who explained: “Could be a number of factors.
My texting scheme meant I had their number – but they had mine too.
One fellow got upset when I didn’t want to see him again and Googled me.