I purchase 50 GB of Icloud storage but my phone storage still full

Hello socorro209,

Thanks for reaching out through the Apple Support Communities about the storage for your iPhone.

It looks like you've had the chance to review the related article above.

While additional iCloud storage does provide more space for your backups, photos and other items stored in iCloud, it doesn’t supplement or extend the internal storage of your iPhone. The following article has more details: What's the difference between device storage and iCloud storage?

For managing the storage on your iPhone, the following article may be helpful: How to check the storage on your iPhone, iPad, and iPod touch

Hopefully that addresses your concern.

Take care.