Who called from 7028577905

keeps calling then hangs up

Male voice telemarketing VIP vacations to Las Vegas....When informed this number was on the Do Not Call List,  he denied such a list exists and was not violating anything.

I didn't recognize the number so didn't answer.  Will block caller but doesn't seem to help.  These call centers just call from a different number.  I am on the do not call list but that doesn't seem to make any difference.

Hilton Grand Vacations, if you sign up for Hilton Honors they will spam the hell out of you.

I've reported this number to the do not call registry but I've still received 10 calls in the last 2 months. Super frustrating!