The only thing worse than DTDC is if you tied your parcel to a tortoise and expected it to deliver it to the correct address on time.
Then again, with the tortoise you would at least have some really great memories that you could revisit again and again. But with DTDC you would just end up wasting your time, energy and money. You might also end up pulling all your hair out due to the immense amount of frustration it entails.
So I guess there isn't really anything worse than DTDC Courier service.