Can someone help me understand my charges after switching to Verizon family plan?

Hello, thanks for reading this. I recently switched to Verizon family plan (Unlimited plus) and in a plan of 5. I traded in my phone and got 16pro and now I only have to pay $7 a month for it for x36 months. When activating the phone at a Verizon retail store they told me my activation was waived. So all in all my bill was supposed to be $42(plan) + $7.49(phone).

I just got my first bill and it’s over $225 !! Bill breakdown: New plan added + new device which shows - $113.34 One time charge : $42 Devices: $7.49 Surcharges: $16.91 Tax: 5.04.

Can someone explain me why there are so much charges and anyway to deal with this. My next month bill is only $55.