I got a brand new iphone 13 in Dec. of 2022 and then in Sept. I started constantly getting an SOS where the signal bars are supposed to be and could not make or receive calls. I took it into ATT stores several times, had the sim cards replaced, but the problem wouldn't go away. I thought it was a problem with my service-not with the phone itself-so I didn't even think of exchanging it while it was still under warranty (and none of the employees that looked at it suggested that it might be a problem with the phone itself). The problem kept getting worse; about 40% of the time when I actually would have signal bars instead of SOS, my calls would be dropped or show that the number was being called but never actually start ringing. My mom, who is in her 80's, lives alone and I HAVE to be able to keep in touch with her but there were many times when our calls would be dropped and we couldn't get a new call through. This has been going on for 6 months now, no one at ATT has been able to help me fix the problem, and the only way out of this is for me to break my 3 year contract and pay full price for this phone that doesn't even work (I got it on a $10/month promotion and still have a year and a half to pay for something that I can't even use). It won't hold a charge for more than 5 hours now, gets extremely hot, and I was told by the last ATT employee who tried to fix it that I must have gotten a lemon of a phone but since it's out of warranty and I don't have insurance, I'm totally out of luck. I have wasted countless hours going into their stores, being on chat, and driving 40 miles to the Apple store to have the phone checked with no resolution at all. And to top it off, I received a survey asking if I was satisfied with my visit to the ATT store and I said no because I still have a phone I can't make calls on (due to no fault of mine) and I got a nasty message from the employee saying he found it very offensive that I said I didn't get the help I needed after he replaced my sim card AND told me my warranty was expired so I was out of luck for having anything done about it! I also received an email saying my bill was going up to $337 a month (I currently pay $188) due to plan changes I made-which I did NOT make (I got a new sim card and that was it), so that meant ANOTHER chat trying to get something fixed. I am so disgusted with them not doing anything to try to help me and then for the guy to have the nerve to text me saying he takes offense at my review (it wasn't even aimed at his service-it was that my problem still isn't fixed). The only reason I am able to make any calls now is because I went back to using my old iphone 8 that I've had forever while my new phone sits here collecting dust while waiting to be paid off.