HELP!!!

Anyone ever had problem with Credit Card Paypal?
I received a payment as much as 583 USD, and I had to pay 34 USD for the PayPal fees. I wasn't aware of the monthly limit I can receive (500 USD for credit card payment) but despite of that, they accepted my Payment in full amount. 
I transfered the whole amount to my Bank account and they approved it, the weird thing is...I didn't accept any notification of the 'electronic funds transfer' you receive everytime you withdraw money to your bank account. I didn't notice this until later that night, I withdraw another 103 USD and checked my email. They DID send me the electronic funds transfer notification. Also,everything is on my Paypal recent activity list including the recent 103USD I transferred BUT NOT my 583USD I transferred to my Bank account (it said payment received, though)
Where did my 583 USD go?  If it's gone and PayPal not refunding me. This is nothing else but a scam.
I hate being left hanging, but if this doesn't turn out well, I will never ever support PayPal anymore.
I want my money back, and I will not fatten PayPal's owner's pocket with my money this way.