How to identify Telus service calls?

I'm worried: A couple of days ago I had several calls from people in India claiming they were from Telus. They knew my name, address, and account number. I thought "Ok, maybe they really are Telus account managers". But now I'm not so sure. 

If they really were official Telus accounts people, why don't they use their real names? Because when you hear somebody with a big Indian accent say their name is "Alex" or "Norman", aren't people going to think "Sure dude, those are common Indian names" and roll their eyes? That's what we're supposed to do when we get called by scammers, right, Telus? 

I did get another call back from somebody else who sounded like they were legit, and answered all my questions. 

BUT. It's been three days already, and I see one minor change to our TV/Internet package. The one important change I asked for has not been done, and we've received no conformation email from Telus. (Yes, I checked my spam folder.)

Frankly, we're talking about finding a more responsive provider.