My mobile is not showing notifications

iPhone Notification Issues

• I am using iPhone

Android Mobile Notification Issues

• I am using Samsung (Android 8.0)
• I am using Asus
• I am using Coolpad
• I am using Huawei
• I am using Huawei (Android 6.0)
• I am using Lenovo
• I am using Lenovo (Android 5.0)
• I am using Lenovo K4 (Android 6.0)
• I am using Letv
• I am using MEIZU
• I am using Oneplus (Oneplus 3T)
• I am using Oneplus (Oneplus 2)
• I am using Oppo
• I am using Sony (Android 5.0)
• I am using Samsung (J5/J7)
• I am using Samsung (S6, Galaxy S6 Edge Plus, Note Edge)
• I am using Samsung (Galaxy S8, S8 Plus, Note 8)
• I am using Sony (Android 6.0)
• I am using Vivo
• I am using Xiaomi (MIUI 5)
• I am using Xiaomi (MIUI 6)
• I am using Xiaomi (MIUI 7)
• I am using Xiaomi (MIUI 8)