Check your front wheel lug nuts for proper torque. My 2018 was clunking with just 50 miles, turned out the wheel lug nuts were not properly torqued. 80 ft./lbs. it should be.
To fix the hatch clunk turn the two rubber bump stops at the bottom of the hatch door an eighth of a turn at a time on both sides till the clunk sound sounds solid.
My '18 does not have a tow hook either, and the instructions on pulling a stuck vehicle out do not refer to a tow hook coming with the car either.
2018 LEAF SL
Delivery April 10 2018
2014 LEAF SV
Delivery May 23 2014
50,000+ miles - all 12 bars - Same range as new - No warranty issues ever!