How do I stop Verizon from dialing #777 ?

[Lisaweb]

I dropped my data plan, but I cannot get Verizon to stop dialing out #777! I tried deleting the Verizon connection in my connection settings, and I've also changed the settings in my Network management to connect to "My Network" for both internet and private network. But the blasted old settings keep coming back every time I reboot the phone! So it still dials out to Verizon if there is no other connection available.

I am frustrated beyond belief! Is there anyone that knows how to permanently stop this phone from dialing #777 and having these leeches charge me for connecting to the network against my will?

Any assistance or suggestions is GREATLY appreciated!!!