Several issues with iPhone 11 Pro max

Hello!

In the last 2 weeks my phone started having different problems.

I use an iPhone 11 Pro Max 64GB, iOS 17.2.1 currently. I use two SIMs, an eSIM (personal) and a phisical (company) one, from different service providers.

Calls:

Sometimes people are not able to call my numbers. Just like if I were in another call on the other SIM card, or like when the phone is turned off. On one of the numbers I get text messages from the provider, but on the other one, not. I do not get a missed call notification on any of the SIM cards though.

Notifications:

Sounds change a lot. Sometimes Facebook Messenger has the basic system message sound, sometimes it has the typical messenger notification sound, but it changes by itself.

Service:

In the last few days there have been delays in receiving text messages from my bank after using my card. They usually come 10-30 minutes later. Earlier it was instant, even faster than the terminal, that I was paying at, getting an answer.

Any ideas?

Thank you!

Tom