Where to Submit a complaint about technical Support

I have gone around in circles with online chats for hours, in store chat in person and one facetime in the store.  I am getting nowhere and all they want to do is send out a technician for us and the equipment is not the issue or I could have done that myself.    I temporarily solved the problem but still need a long-term solution and paying   100+ dollars for a technician is not a solution.

Please help  Mom is 94 this is crazy!

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