Please check the email address shown in your prompt box.
The most common problem for not receiving these is because they end up in junk/spam folder so please check them as they may be preventing you from receiving your verification code.
Also please make sure that you do not close the window requesting the code until you have received the code email as requesting a new code invalidates all previous codes.
You may wish to add the following email addresses to your email white-list to ensure that our emails are not automatically blocked:
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