Bill too high - looking to get internet deal. Current xfinity mobile and internet customer.

I’m looking into getting a new existing customer internet deal. The comparable options in my area without long term deals are appealing and I can’t find something in the current plan that would be sufficient. I tried to go in person and the deals being offered were already more expensive than my current rate and did not offer any discounts that others in my area can receive. Why should existing customers be penalized for continual membership? I am a long time customer and I would like a review of my plan as well as xfinity mobile and provide bulk discounts and new rate. Thank you.