iPhone

1. Launch the Settings app

2. Tap Wi-Fi

3. Tap the info button next to the APNK WiFi network

4. Tap Forget this Network

5. Tap Forget

Android

1. Launch the Settings app

2. Tap Network & Internet

3. Tap WiFi

4. Tap the Cog button next to the APNK WiFi network.

5. Tap Forget