How to turn off 3G on my Doro 6520?

I have tried turning off the 3G on my Doro 6520 but it is still saying 3G on the home screen and I am concerned it's using data when I don't have a data package. Thank you 

1. Press Menu Settings Connectivity Mobile data Function on/off.

2. Select On to enable, or Off to disable.

3. Press OK to confirm.
For more info, visit Doro 6520 page and download the manual.

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