Errors on IPhone XS 64GB

Hey.

On september the 1. 2018 I bought an IPhone xs 64GB on Apple's website.

It has over the past few months come up with some errors that I want to hear if it can be corrected using my 2 year warranty.

1. Other iPhones cannot call me. It just goes on as if my phone is off.

2. When I receive an text message, the message tone can be clicked, so it rings many times even though it is only an message.

3. Sometimes the touch does not work on the screen, so I have to wait for 5-10 min before it works again.

4. The lock button sometimes does not work and you can neither lock it nor unlock it.

Hope you can help.

Vh Maria