They're in India asking about debt consolidation.

Caller asked for "Brook". I indicated that I knew no one by that name and he apologized for the call and hung up.

This might be a debt collection company. They knew my name and prompted me to wait about a minute, while "my account information was being looked up". A human then answered and said hello and that he was with "CSI" but acted like he had no clue why I was on the line with him.

Calls my cell several times a day (5 ).

High volume outbound callers such as surveyors, debt collectors, politicians, telemarketers, etc. all try to maximize their resources. Given the general unpredictability of answers, callers resort to using multiple lines per agent employing dialing strategies known as predictive dialing and power dialing. Predictive dialing utilizes a pacing algorithm that factors agent availability, average call times, and answer rates in an attempt to maximize agent talk time with the lowest possible abandonment rate. Despite clever pacing, agents are inevitably unavailable for all answers and abandonment occurs. Power dialing maximizes agent talk time by continuously dialing all available lines. This results in astronomical abandonment rates.

Calls automated asking for person, no matter what they keep calling back