What else can I do?

So I recently purchased an s7 edge and bought the Skin omitted case friendly screen protector. After installing the first protector I noticed there was some lifting on the left edge. I figured this was due to only waiting about 12 hours for the film to dry and because maybe I didn't hold the edges down long enough.

So I decided to try and install the second film and get it right. I carefully and properly installed the film, held both edges down longer than needed and even kept the phone off and untouched for 36 hours yet it is lifting on the left edge again! I don't understand why as it has been the left side both times and the right side has been fine both times. Is there anything I could have done or is it just bad luck?

Also due to this I am contemplating buying a case that has a front cover but I have no idea what's available if any of you know any good ones any suggestions would be much appreciated. Also I've looked at the wallet style covers and was wondering if there is any wallet covers that you can put a phone with a case in? As I would not want to have the wallet cover on all the time and would not want to constantly switch between the two.

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