WARNING--BEWARE!! These callers are B I G credit card criminals, known as the card service scammers! Under NO circumstances, give these lowlifes your credit card number, or you will regret it forever!
Scammers. Ignorant me gave my information to "lower the interest rate" on my credit card. As conversation went on, call became more suspicious. Immediately verified with my credit card company who advised it was NOT them. Do NOT give your information!