Facebook randomly took my money

[Zenabm]

I had been charged by Facebook ads which randomly occurred and PayPal said it was an authorised transaction. What should I do

[kernowlass]

@Zenabm 

Check if you had a subscription set up and cancel it.
Click on the profile tab (icon next to log out) > Click on payments third option along on the thick blue band top of page > "manage pre-approved payments.''