If you are trying to reset your password and so on, requesting multiple times in a short period is more likely to cause delays than fix them; Your ISP or mail provider will see lots of emails coming from one email address with the same content and will automatically assume it is spam meaning that it is less likely to arrive at all or the delay will be increased.
You only need to request your password or PIN once and then wait a reasonable time (hours) before requesting again or contacting support.
Please also ensure to check that your work e-mail and log in e-mail match. To check this, browse to:
People > Employee > Edit > Job Details > Work Email
People > Users > Edit User > Login Name