Thank you for your advice.
All I have is an email from BT confirming the order for unlimited minutes (raised by BT) no option to confirm/ agree. However when I rang today the complaints department said the error had been sorted and of course it hasn’t. They were supposed to have rung me twice this week but failed to do so. As far as they were concerned it was sorted. Left to them I would still be waiting for a call (bad customer service). Following my caIl they have once again referred it back to the technical team. So I suppose I have wait again to hear what they come back with.