Sim swap/Phone Repair

[Anonymous]

I recently sent off my current phone for repair, i have placed my sim in the phone i had before the one ive sent to get fixed, when at the shop i choose "By Call" under the option of how id liked to be updated about my phone, thinking thatd be fine, ive be able to send texts fine and use mobile data, but today i noticed i had a voicemail, tryed to call it didnt dial out or anything no sound what so ever, turns out i cant make or receive calls which is annoying because im not going to get any updates about my phone, is there a way to sort this or anything? thanks

[MI5 · Accepted solution]

If you call customer services from a landline or another phone, they can update your contact options for you and check why you can't make calls on your account.
http://www.o2.co.uk/contactus

[jonsie]

You need to call customer service and have your account checked first. 

Then look here

https://community.o2.co.uk/t5/Other-Products-and-Services/Self-help-guide-Is-the-network-down-for-me...

Also check your postcode 

http://status.o2.co.uk

http://www.o2.co.uk/contactus

[Anonymous]

Discovered it isnt the sim but infact the device so is there any tips on why this is happening or?

[MI5]

Have you got call blocking or diverts set on?
Dial ##002# to cancel all diverts.

[Anonymous]

called that number, got a pop up saying "connection problem or invalid mmi code"

[MI5]

You sure texts are working OK?

[Anonymous]

I am, Been using them all day, and im now getting text alerts that people have tried calling me

[MI5]

Strange - any network problems reported for your postcode?

[Anonymous]

Checked on the website and it says it all up and running, put my sim in my sisters phone since shes on 02 aswell and it worked on that so its clearly th device i just dont know why, if i cant fix it ill just have to go to my 02 shop and tell them to contact me via text