If you don't like to log in your Bitsler account or in the Bitsler forum or even check here in Bitcointalk for the announcements for new promotions or contests, you can create a google alert where all you need to do is create a search string and create the alert within your gmail account and just wait in your email, they will send you an alert if anything is posted in the internet about Bitslers new promotion.

Example of gmail alert search string that I use is Bitsler+new+promotion+2019 and select "as it happens" so that anytime a new post is created,  you will be alerted.