Unfortunately, we don't have the functionality available to disable the notifications. The settings are recently removed from the App.
However, you can still disable notifications from OS settings, with the help of below steps:
Steps for iOS:
Open Settings > Scroll to the bottom of the screen and select Wynk Music > Tap Notifications > Turn Off Allow Notifications setting
Steps for Android:
Settings > Notifications > App Notifications > Select Wynk Music -> Turn ON Block All or Turn Off Show Notifications