bill overcharge

[Dan50]

last month I upgraded to 8gb for £8/month but my first bill is nearly £12

I have no extra charges showing on my bill just a tariff of £9.63 + vat

I can't get through on the 200 number they just keep switching me off can anyone give me another contact number?

[PhoneChanger]

Your first bill is always slightly higher, as you get the month your in pro-rata, and the first month ahead. Should be normal from next month onwards

[gmarkj]

202 is customer services.
There are some other numbers in the link below.
https://community.o2.co.uk/t5/Other-Products-and-Services/Coronavirus-Covid-19-Community-Help-and-Su...
As you have just upgraded it will be because you have paid for part of the last month on your old deal, and part on the new one.
Your bill should show this.
Follow the guide below to get to the correct page:
https://community.o2.co.uk/t5/How-to-Guides/How-do-I-get-to-the-Download-Bill-page/ba-p/1014096

[MI5]

@Dan50 

If it is a discounted tariff your bill will always show the full amount before discount and the discount will be applied as a bolt on Guide: Where is my discount or Extra Data? 

[Marjo]

Hi welcome to our community @Dan50  Hopefully the above replies helped you find out all you needed to know about your bill amount. If you get a moment to pop back in do let us know how you're getting on?