Jun 2, 2016
NEVER push a button or call a number or anything else. Any interaction confirms you are a "live" number and they'll never leave you alone (that's why you couldn't talk to a live person - they NEVER have one). They'll most likely sell your information to the thousands of other jerks just like themselves. See this article (applies to any telemarketing call, not just credit cards):
“If you receive a robocall about lowering your credit card rates, hang up immediately. Taking any action by pressing a key on your phone will likely lead to increased robocalls, regardless of what the automated message tells you. Also, remember that these calls are part of a scam. The “service” being advertised in the call cannot save you money. In most cases, the real goal of the call is to collect your number to sell to other scammers or to charge your credit card with phony fees.”
http://fox6now.com/2014/07/01/consumer-alert- ... ith-a-new-hook/.