customer service

I’m reviewing my monthly bill and my home internet charge of nearly $150/month seems far above your current advertised pricing. I’d like to understand exactly what I’m paying for and explore moving to your best current internet-only plan with the same or better performance. I see that I'm paying $124.00 for the Gigabit Extra, which seems very high; what are my other options? And i'm paying $25.00 for xFi Complete... I don't think I really need that, can you please explain what this is and how it benefits me? Thank you very much!