Views Slideshow - Bullets or Numbered Pager not displaying
You can achieve pager using View Slideshow by following steps:

Step 1: In view, add Global: View result counter field and mark it as Exclude from display.

Step 2: Now click on Slideshow format settings, go to Pager part and select Global: View result counter field as a Pager Type. 



Step 3: To give perfect bullets effect, you will have add some CSS as given below 

.views-field-counter {
    float: left;
    margin-left: 5px;
}

.views-content-counter {
    text-align: center;
    width: 29px;
    background: url(../bullets.png) no-repeat scroll center center transparent;
    cursor: pointer;
}


Step 4: Please check out CSS Classes, ID's and HTML markups form below screenshot, which worked at my end.