You can access the Webstore in a few different ways:

1. Deals Tab in the Shop:

Go to the Shop and open the "Deals" tab. You should see a Free Gift offer. Tap "GO" to head straight to the Webstore.        

2.   Free Gift Button in the Shop:

While in the Shop, tap the "Free Gift" button at the top of the page (next to the VIP Program tab). This will also take you directly to the Webstore.

3. Inbox News Message:
Open your Inbox and find the News message about the Webstore. Tap the message to go straight to the Webstore.

Hope these help!