hello, I received a letter today saying that "due to an administration error the normal standing tickets will no longer be available"

now, people that had them are being offered Gold Seating for no extra fee (£10 cheaper)

But Im just wondering, theres space for maybe 10-15,000 people on the pitch at Old Trafford, surely they cant have that many gold seating tickets left? and where exactly is the Gold seating? And whats going to happen to the pitch? They cant just leave it empty surely?