At the moment, we can't disable message notification
The chats aren't spams. These opening messages sent from females sent via a press of a button on their side. They choose what type of message they want to send.
The best solution for you now is to delete your current account and remake a new one. In order to delete your Paktor account, please follow these steps:
+ Step 1: Open Paktor app
+ Step 2: Get into "Profile"
+ Step 3: Roll down to the end to see one red button stating "Delete Account"
+ Step 4: Click the button to delete your account directly on Paktor.
After that, your account will be deleted completely from Paktor system and you can create a new account with your current Facebook ID.