Left Rear Window - Consumer Complaint for KIA MOTORS - HEAD OFFICE (Complaints)

I bought the Kia Seltos EX 1.6 in Jan 2020 and sometime during the year, the rear left window started making a funny noise and was very slow going up or down. It was checked when the car went in for service at the Kia Edenvale in Dec 2020 and they ordered window runner rubber and regulator which were replaced on the 2nd of Feb 2021. About two weeks there after the car did the very same thing and I took it back on the 1st of March 2021 which was Monday. It has been working fine but everyday it seems as though it gets slower again. Now yesterday the 3rd or March 2021, the very same door does not open from inside as though the child lock is on, but it's actually off. This is truly getting frustrating now for me to keep going to the Kia Dealer. I need answers please. The car is still new for God sake.