Apex domains cannot have CNAME records.
Question and response
Question
dig rev.globalcollect.com. NS
Answer
rev.globalcollect.com. 5 NS dns4.p08.nsone.net.
rev.globalcollect.com. 5 NS dns1.p08.nsone.net.
rev.globalcollect.com. 5 NS ns1.global.ingenico.com.
rev.globalcollect.com. 5 NS ns1.preprod.global.ingenico.com.
rev.globalcollect.com. 5 NS ns1.sandbox.global.ingenico.com.
rev.globalcollect.com. 5 NS dns3.p08.nsone.net.
rev.globalcollect.com. 5 NS dns2.p08.nsone.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0