Samsung

I have upgrade two company contracts to the Samsung Note 8 and Samsung S9. Both cells have the curved screen. I purchased original Samsung screen protectors. The problem is that as I have discovered is that no screen protector is compatible on the curved screens . With in the first week both screens were lifting. This is not the first time I have experienced this problem, the same thing happened with the Samsung S8 from the last contract. Each screen protector is between R400-R600 rand. I have also tried other brands. How can Samsung design this screen knowing that no screen cover is going to stay on? I have spent hundreds of rand purchasing. I would like an answer as to how to protector the curve screens!!!!!!!