How can BT just give away our broadband connection?

We moved to a house in the Scottish Highlands that had internet ... then it didn’t. Now, there is no room at the exchangeWe recently moved to a house in the Scottish Highlands. Knowing that broadband was likely to be an issue we were careful to buy a property with an existing internet connection. However, after moving in, BT could only connect our phone line. After a great deal of to-ing and fro-ing, it seems that our home’s broadband line had been given to someone else. We have been