Hello katelin2021,
We are sorry to hear that you are still receiving calls and texts from a blocked contact.
Have you tried to unblock the contact and block it again? You can do that by following the steps under the "Manage your blocked phone numbers, contacts, and emails" section of Block phone numbers, contacts, and emails on your iPhone, iPad, or iPod touch
If that does not resolve the issue, try to Update your iPhone, iPad, or iPod touch
After updating your iPhone, Update your carrier settings on your iPhone or iPad
If those steps do not resolve the issue, you can Get Support here.
Have a great day!