Why does a mobile banking app compatible with OS 5 not installing on my Note 3

[AC Question]

I have contacted the banks IT, the providers IT and Samsung and no one can give me an answer.

They are all pointing the finger at the other guy. Not what I call customer service.

 

[B. Diddy]

Welcome to Android Central! There are other reasons for an app not being compatible. It could be some hardware issue, firmware issue, or regional issue. Unfortunately, the developers never really give details about this.