Currently, the porting process really sucks if porting into LC phone. I've successfully ported hundreds of numbers between other platforms in the past easily but struggle with high levels. Of the 5 numbers I've tried to port I've had multiple instances now where the support tells me a port was completed to have the number not work and find out they did it wrong and have to start all over. The average porting time is a month with high level and less than 7 days when going direct with Twilio. I know Twilio is the one doing the actual porting but there must be some sort of issue on HL's side because I've never had problems porting directly to Twilio.
Support seems to be of no help either.