IIPT = Is It Possible To

I want to have vertical-align on a cell but even with a macro that change the style and the format of a cell it doesn't work !
Here's the code :

I add background-color to show you that macro react to background-color but not to vertical-align... Why ?
Is there any solution about that ?

Hello !
Border option is about cell's border, in my problem I just want a vertical text alignment. I will show you with excel check the attachement as an example.