We have been using Intercargo for over 4 years now; I happened to come across these reviews looking for their depot address at Heathrow and felt I should comment.
We are a business and have used a few freight forwarders in the past - Since our first shipment with Intercargo; my team and I have found them to be very helpful at all stages of the booking from the initial rate request through to bookings, operations and accounts.
Having read the reviews, it would appear that labels have not been applied or have come off or instructions have not been followed, so delays have led to unhappy customer reviews.
Just in case this sounds like I work for the company, I am happy to forward a written reference through Intercargo should you wish for written confirmation.