Absolutely awful. Got tickets to see Bjork last ni...

Absolutely awful. Got tickets to see Bjork last night. O2 changed our tickets, supposedly to give us a better view, but we could not even see the stage & there were no screens provided so we could see what was going on. A black panel at the side of the stage & lighting rigs blocked our view. Due to the position of our seats, it made the sound a mush of bass notes that were, at times, inaudible & very unpleasant. These tickets should not have been sold with a non existent view for such a visual tour. When buying the tickets, it said nothing about a restricted view. It was our 21st Wedding Anniversary & it spoilt the night. We will not be returning to the O2 again. Customer satisfaction is clearly extremely low on their list of priorities.