Re: It's been years since . . . .
Worked in IT for 20 years, installing all kinds of lines. Not once have I ever been asked for the original equipment. And, for ADSL, it's a £20 box... they're not going to lose thousands of pounds of custom over a £20 box that they produce en-masse and change every year. Not if they have half a brain.
P.S. So long as your router is certified compatible (e.g. BT SIN 498 MCT), they have no just reason to insist on a particular box.
Biting the hand that feeds IT
