Receiving numerous, back-to-back calls from this number. Never leaves message.

They called and left a voice mail but I couldn't understand what they were saying, the only thing I could understand what they said was "call us back" at the end of the voice mail but they keep calling and then hanging up as soon as I answer.

OK I just called them back the phone didn't even ring once but they  "Thank you  calling Chase Card Services to better assist you please enter your 16 digit card number (or something like that) or your social security number " I don't know if it is actually the Chase card company or not though

I've been getting calls from this number 3-4 times a day for the past 3 days. They never leave a message and they have even been calling over the weekend. I don't know anyone who has a 407 area code, which is apparently in Florida. It's very annoying, but, since they are calling my cell phone, I am not going to waste my minutes on someone I don't know. If it was important they would leave a message, right?

Chase Card Debt Collector