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Why i cannot receive verification codes and calls after i changed my number ?

Sumit
Level 1: Joiner
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I got a new o2 sim card and then i wanted to keep my old number and then i changed it since then I'm not able to get any verification codes and calls. Why ?
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MI5
Level 94: Supreme
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@Sumit 

Seems like something went wrong with the sim swap?

Were you on O2 before or a different network?

Is your phone unlocked to accept an O2 sim card?

I would contact customer service to check your account status first Guide: How to find help & contact O2 

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)

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MI5
Level 94: Supreme
  • 143438 Posts
  • 632 Topics
  • 27490 Solutions
Registered:

@Sumit 

Seems like something went wrong with the sim swap?

Were you on O2 before or a different network?

Is your phone unlocked to accept an O2 sim card?

I would contact customer service to check your account status first Guide: How to find help & contact O2 

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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Martin-O2
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 Hey @Sumit did you speak to customer services about this and if so what did they say? 

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