Bharat Sanchar Nigam [BSNL] — outstation aadhaar not linked

Address:

Tiruchirappalli, Tamil Nadu, 620014

I am a psu employee posted at trichy, tamilnadu. We are being transferred throught the india frequently. So i registered aadhaar at my permanent address of home town in bihar.
I have been using postpaid services of bsnl in trichy circle of tamilnadu state. As per directive it is mandatory to link mobile no. With aadhaar, otherwise services shall be terminated.
But the bsnl representative, refused to link my aadhaar, stating that it is outstation aadhaar. It was shown to him that on aadhaar intimation letter it is clearly mentioned that “aadhaar is valid throughout the country”. Also it was informed that other organizations like bank and other telecom operators also, are accepting any aadhaar based on the caption written on aadhaar intimation letter.
But the bsnl representative, still refused to link my aadhaar.
As a result, i could not link my aadhaar with my said mob no.