But how can they even download all the old versions of my apps? They are not available at App Store as far as I know, or do you know otherwise? thanks!

No, I have not heard anything from Apple, and it happened again recently with my other 2 apps. Yes, I still don't know how is it even possible...

thanks a lot for your time and detailed answer, we will definitely try the Bug report, is it in Feedback Assistant or something else? one more question about "Even by typing twice the name, it does not show", it doesn't show when you just type it or when you hit return? when I type twice and return, it shows me 3 apps - 1) Some random one from Ads 2) our Graphmath 3) other Graphmath2 We are even thinking about changing the name to Graphmath1 or Graphmath3, if it does not resolve soon...

thanks a lot, will do that on you answer, will see (I am new here)

@Claude31, thanks for your reply, I have been waiting for almost 2 months, asked Apple Customer Service on August 30, they created a ticket and now every time I ask they just reply “they are still working on it “