Globe Life And Accident Insurance Co Changed my childs policy at age 20, charged 4x more! Internet

I bought a Globe Life policy for my daughter when she was born. The application guaranteed the rate is guaranteed to stay the same for the rest of their lives. She just turned $26 and I got a policy renewal for $225 instead of the $80 it should have been for $20,000 coverage (it did go up from $60 after age 25). The said it was because they changed it to a cash earning policy which I did not request nor do I want but they will not leave it the way it was. I find this to be fraud and I have 5 other childrens policies that I'm afraid they'll want to do the same thing when they reach age 26. I do not know what to do as calling them did not help.