OK - I just started up my copy of Frozen but selected "English Descriptive Video Service" at the startup screen. Then I went to the top menu, selected Bonus Features to see Get a Horse, and I hear the voice describing the action. You probably need to eject your DVD and start over again, but make sure you select just basic English.
I'll try the DVD version. That disc should be the same as the DVD-only packages. Actually - yeah, that has a similar popup, but the second choice is for the "English Descriptive Video Service". It comes up with a screen where the selections are between a group of trolls huddling together (Blu-Ray version is only the options in a big snowflake). My guess is that you selected this by accident. You can change this in the menu screen. From the main menu it's SET UP -> Languages -> English 5.1 Dolby Digital. I'm assuming you want English.