Worked for me !
Well. I had an iPhone 7 that was blacklisted and FMI on linked to my previous owners iCloud account and the phone wouldn’t activate. I tried many services like Unlockbase and applriphoneunlock but none worked. In the end though expensive BIR was able to unlock my phone in around 13 working days from date of order. Not bad. The only reason to take 1 star away would be the speed and clarity of response on emails. I did have to go through couple of days of lull period and unclear back and forth but in the end I got my phone activated and I would definitely use them again.