The only thing that has changed is that it has been necessary to replace my motherboard twice since I subscribed. The first board was replaced on last Friday and this board was replaced today.
That may mean that the system sees the original board and its replacement as two activations and the third board has probably meant that your system has cried 'enough' or even 'too many!'
On the assumption that my motherboard is now stable please ask your technical people to take into account my explanation as to what has confused the otherwise functionality of your system. There is a strong argument here for multiple software subscribers to be given one serial for all products installed.
In the mean time I am unable to access any WA software because of activation restrictions.