Site is down, google finds no new address. Can find nothingness on bitcoin forums, but Gregor not brightest crayon, perhaps doesn't know how to search.
1 Answer
The site was shut down in November and the former operator claims to no longer be involved with the service.
That operator is now attempting to raise funds for a new venture, Ziggap.
QuickBitcoins didn't take deposits. They were a service used to buy coins for immediate delivery or for selling coins with immediate cash-out.
If you are owed bitcoins or funds from a cash-out transaction, the operator at the time would still be responsible for that liability, regardless of whatever disclaimer is provided about now "no longer having any relationship" with the service.