Why are my bills so high?

Pro Rota Billing explained

EE Pro Rota Billing
New Connections Within around six days of connection, customers will receive their first bill from EE. This will be for one full month’s line rental to cover...
Tue, 21 Mar, 2017 at 3:54 PM
O2 Pro Rota Billing
Your first bill You'll get your first bill within four days of joining O2. You’ll be charged 14 days after you receive your first bill, and your bil...
Tue, 21 Mar, 2017 at 3:55 PM
My.Plan.Com Billing Guide
Please find attached My.Plan.com quick start guide to explain your plan bills.
Tue, 21 Mar, 2017 at 4:00 PM