Please refer to here
https://www.paypal.com/my/webapps/mpp/paypal-fees

Unless you're having foreign PayPal, there is almost no way to send money without any transaction fees imposed.

It usually takes immediate effect (sending money), unless your account is truly new then you will have to verify your card/bank account associated before you are able to send any money.

Do note that sending/receiving money with UNVERIFIED PayPal account will risk yourself in having it limited.

Contact paypal by phoning them to know more

It has always been slow; your past withdrawals have been quite lucky you have nothing to worry about till the estimated date of credit has passed

Are you serious? 3 working days have passed and you're already asking please expect up to 14 days, though lead time is mentioned upon withdrawal but it is up to banks discretion on when to process the payment