User Activity

I'm trying to update my account and when prompted it is supposed to send a security code.That e-mail is not being sent.I can receive all other e-mails just not the security code.it looks like it is adding a fullstop to the end of my e-mail.Further to...
Hi, invoice 31/8/18 for $79.91 had weekend listings of $1 per item. Please let me know how this figure is calculated. Thanks Janis