O2 is the worst network

[Bijoy]

I'm completely frustrated. O2 charge me huge amount because of terminating contract before 14 days. I'm not support to charge any amount. None of customers service is helping me out. 

[Cleoriff]

@Bijoy 

You need to persevere with O2. We can't help you here. There are numerous numbers to try:

You need to call customer service.

Call 202 from your mobile or 0344 809 0202, 0800 902 0217 or 0800 032 1402 

If you have no access to a phone then use Skype to call 0800 032 1402 Guide: A Guide to Skype 

When you call, you will be asked for the reason you are calling,

Stay silent for 15 seconds and you will be taken to the keypad options.

Press 2 for Everything Else

Press 5 for More Options

Press 7 for Anything Else which will put you though to an advisor.

Press Upgrade, Lost/Stolen or Fraud if you have to.

8am is the best time to call

Or you can message O2 on social media on Instagram https://o2uk.co/O2CIG), Facebook ( https://o2uk.co/O2CFB) , Twitter ( https://o2uk.co/O2CTW). 

[Cleoriff]

@Bijoy 

The payment management team is the one to try first. Their number is 0800 902 0217

[Oxonian]

@Bijoy 

If you persevere with Customer Service and you issue is not resolved, you will need to consider a complaint :-

How to Complain | Help | O2

https://www.o2.co.uk/how-to-complain

Customer+Complaints+code+250523.pdf (o2.co.uk)

https://www.o2.co.uk/documents/456036/4246828/Customer+Complaints+code+250523.pdf

But please ensure that you give Customer service a reasonable opportunity to sort you out before taking this step.