Sony z3 Compact screen lifting

I got a Sony Xperia Z3 Compact a year ago when I upgraded. <br> <br> I had the phone for 8 months before the front screen began to lift cause of the battery that started swelling up. 5 months after having it repaired i have the same problem again with the screen lifting and battery swelling out.<br> <br> i spoke to the Sony repairs department and the confirmed that the battery was never replaced when i sent it in the first time. They only replaced the screen, where it was the battery that needed to be replaced cause that was the reason my screen was lifting and it was swollen up and now i am sitting with the same problem. <br> <br> I am seriously unhappy with sony and i will never in my life take another sony phone again if this is how they treat the customers and devices.