Samsung s9+ damaging headsets

Had my akg earphones damaged the jack broke off, and what a nightmare it was to find out if it was under warranty. Mtn traderoute refused to book it in they said they are a franchise store I should go to mtn direct. Anyways I visited samsung store in mall of the south only to find that they moved. I then found out we fix we affliated to samsung took my headset their after waiting for more than an 1hour got their glen store to open was told they dont repair headsets. Samsung has 3 repair centers in Johannesburg which is inconvenient for customers being such a huge company this is terrible. Anyways I decided to get a new headache which eventually damaged after 1 week and then got another replacement which is now damaged after a week. Using my old headset now and guess what one side of the speaker has stopped. So it seems something is wrong the jack outlet of the phone, the S9+ eventually damages the jack of the headsets I guess that is the reason they dont offer repair on the headset because they are aware that it will eventually get damaged by the phone. I have been listening to music this way for years and never had this problem until I got the S9+ How can 3 headsets get damaged in a space of 3 2 months? I used one pair of headsets for 3years..