"Unfortunately, we were not able to complete the rest of the unlocks waiting in our queue due to our suppliers being unable to offer the service anymore," CutYourSim told Cult of Mac. "Our suppliers have told us that there is a possibility that the service may return, but they do not know when, so we have decided to start processing refunds for any orders that we were not able to complete."
CutYourSim managed to find someone to whitelist IMEIs the same way a 'legit' unlock by Apple would be performed. It's thought that Apple managed to figure out how these IMEIs were being whitelisted and put an end to the practice.
"To tell you the truth, first our supplier told us there were server issues, then after that they just told us that they will not be offering the service anymore. We are not sure where the service comes from, or whether its a contact through AT&T or Apple. We do know that the service is performed in the UK, but thats about it."