My phone iPhone 7plus storage is 32GB plz make it 128GB please

That can't be changed, that is the physical storage in your iPhone. You would need to buy a another iPhone with larger storage.

There is no way anyone can give you more storag on your phone. It will always have the amount of storage it came with. the only way you can get more space is to delete photos, messages, apps, etc.. Be sure to save important photos and data to your computer or an external drive. This video may help...