I think their service is very swift and pocket friendly too. The best we have got ever since flying to Ghana. We urgently needed an overflight/landing permit for our jet to land at the Kotoka International Airport, it was amazed how fast the permits were obtained. I can recommend them to anyone.
But if you'd want to get immediate response then i advice you to call their phone numbers rather than fax. My fax wasn't replied fast enough, but i got immediate response as soon as i called the phone lines.
Thanks to all of you at Global Clearances Limited.