Samsung 

Step 1: Exclude Cliq from battery optimization

  1. Open phone Settings -> Apps. 
  2. Find and tap on Cliq.
  3. Under App settings, tap Notifications
  4. Then ensure that Notifications are enabled (Allowed).

Step 2: Exclude Cliq from battery optimization

  1. From the app drawer, open Settings -> Apps. 
  2. Tap the menu button on the top-right and select Special access. 
  3. Tap on Optimize battery usage.
  4. Scroll down to locate Cliq and toggle the slider to OFF.