NO CUSTOMER SERVICE! TAKES YOUR MONEY AND NEVER GIVES ASSISTANCE

My dad bought a drone from the Hobby Group last year. Fully Paid. Since end October we have been trying to get assistance, as the drone doesn't follow the remote control path, but hovers and then goes its own way. Obviously this is alot of money to lose, if we lose the drone. But its seems the Hobby Group only gives service at point of sale, and NO after sales service. We've sent emails, video's, phone calls etc, with NO ASSISTANCE. Even tried to go to their office for assistance, and they had the excuse that the technician is not available and will call us back. They are quick to take your money, but have ZERO assistance. Don't buy from them :(