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Why can't I send texts to a 4 digit number

djs210664
Level 1: Joiner
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on ‎10-03-2021 23:24

on ‎10-03-2021 23:24

When ever I try to reply to my hospital appointments or Doctors I have to reply to a 4 digit number but I keep getting the error code. Error 21. Does anybody know why
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MI5
Level 94: Supreme
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on ‎10-03-2021 23:29

on ‎10-03-2021 23:29

@djs210664 

You may have a spend cap o. Your account.

Guide: Spend caps on O2 

Call customer service to check. 

Guide: Coronavirus Community Help and Support 

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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Bambino
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on ‎11-03-2021 00:18

on ‎11-03-2021 00:18

@djs210664 Unfortunately, you have to lie these days in order to speak to customer service. O2 doesn't consider your call important because you're not buying anything, so you have to use the Upgrade, Lost/Stolen, or Fraud option to get through. Otherwise you'll just be disconnected.

8 am when they first open is the best time to call.

I DO NOT WORK FOR O2



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