Called twice would not say anything

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.

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.

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.

Announced as ...International. Asked if I ever had an office in Indiana. I replied, "no." She hung up.

I can't stand these people anymore, they keep calling and then when I piss them off since I don't answer their question someone new just calls me again. All of our office numbers are on the do not call list but that gets me no where