Apex domains cannot have CNAME records.
Question and response
Question
dig thetjsupport.com. NS
Answer
thetjsupport.com. 5 NS ns-980.awsdns-58.net.
thetjsupport.com. 5 NS ns-523.awsdns-01.net.
thetjsupport.com. 5 NS ns-698.awsdns-23.net.
thetjsupport.com. 5 NS ns-1684.awsdns-18.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0