Sony India — sony xperia xa1 ultra dual sim not working

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Surat, Gujarat, 395008

I have repaired 3 times and right now i am facing the same problem today. i have applied all your steps that you have mentioned me in email. but the display is not working on upper right side of the phone same as above 3 problems. now i am having the same problem after changing the display and touch panel 3 times within a 12 months. i think there is a something defect in a phone that is why i have to change the display every after 3-4 month. now i am getting exhausted because of this problem only and i want the exact solution of this phone. this time i am not going to change the display and touch panel. i have a business and i am suffering too much because of this problem. why i bought this phone, to change the display every after 3-4 months? i am requesting you to look into this matter seriously and waiting for a positive response from your side. if you need more information regarding the phone and service please let me know and try to resolver this matter as soon as possible and i expect this solution will be your last solution for me...