Contract ended but still being charged for contract

[Karla13]

My contracted ended and still being charged the same price for my phone even though my phone is paid off now. How do I change the tariff 

[MI5]

@Karla13 

Use USwitch

https://www.uswitch.com/mobiles/compare/sim_only_deals/o2/

Choose the deal you want

This will automatically redirect you to the O2 website

Just follow the prompts and choose the UPGRADE option

Complete the deal and nothing on your account changes except the tariff at the new cheaper cost

Payment date is the same and your next bill will be at a cheaper rate and will be made up of the pro rata cost of your old tariff and your new tariff

The change should show in My O2 within 24 hours

Volt benefits will still apply as will possibly a 3 month extra such as Disney+