received a payment email, but balance is zero

Hi! I have a problem, and would like to ask for some help, as I sent an email to customers support but never got a reply...
A few days ago, I received a "good news" email, stating that I had received a payment from my employer, and that the money had been credited to my account.
However, when I log in, I see that I have a zero balance, and that there are no transactions...!
Could someone please enlighten me as to what's going on and how I can find this missing payment?
Thank you!!