Best answer by Mohammed
I'm disappointed you feel this way.
The link to our Terms & Conditions was sent so you could see the source of the information I was providing.
As you can see in my original message, I extracted the relevant part of this and pasted it here so you were able to find the answer to this.
It's unfortunate that you feel this has not answered your question.
It's not a case of more information being required, I've answered the question to the best of my abilities but we can't provide an A or B answer that you were looking for.
The answer to your re-phrased question would be:
There isn't a way to tell if a handset is locked/unlocked.
But this may get locked, in which case, we can look at unlocking this.
Under section 5.12 of your Terms & Conditions:
Your SIM Card and tariff can only be used in the device you received/chose at point of purchase/connection to the Services.
Further to this, (and also confirmed above) your handset may be locked to our network.
In the event that this is locked, we can look at unlocking once contacted.
So, In summary, if it is locked, we can look into unlocking it but I can't confirm if it'll be locked or unlocked or distinguish this at purchase.
I hope this helps.