Swollen iPhone battery
This problem was reported before but Apple customer service are so bad. I have an iPhone X that I use as a back-up phone. It is almost new. I noticed this morning a bulging screen and the screen came off the body of the phone. I took it to an apple repair store who discussed with Apple service that refused to repair or exchange. I then phoned apple service 4 times and every time they passed me on a supervisor who put me on hold for 30 minutes (2 hours in total). I still have a swollen battery that heats and I take 2 flights a week. I am not sure if I should tell the airline. I dont know who to contact so that Apple repairs or exchanges my phone. I heard it is dangerous to use a phone with a swollen battery even if everything functions well. The repair shop told me clearly that the phone is defective.
Any suggestions please. Thank you
iPhone X