Called twice would not say anything

This number has called my office the past two days looking for information on other companies in the building.  When asked who they were, they replied "Telus" International and they were compiling information on business migration in the area.  Then they started asking questions about our address and employees.  I called back the number and got a weird out of service message. I've come to the conclusion that they are up to no good, fortunately we have caller ID and will not be accepting calls from this number any longer.

This company has called our office several times saying that they are from Telus International looking to update their records for such and such company located at and they give the address. Once I tell them that they reached the wrong company they insist that they have the correct company. Then they want me to verify our address. I asked for their number and the lady told me that she didn't have a callback number just an extention.

received call asked for my social# or drivers license #.I was very busy and like a dummy blurred out my social number.I just signed up with txu energy said she was with them. IfI was going to be secondary on account needed the information.

Keep calling every 4-5 minutes

Got two calls on my cell phone from them today. ?One hung up as soon as I answered.  The second just played what sounded like music-on-hold.Thanks for burning my cell minutes.