Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: IB+ Gold, TK E+, Hyatt Globalist, Marriott LTP, IHG Diamond
Posts: 14,210
You need to be in Y, B or H to upgrade using Avios. Even then I have my doubts that it can be done on LEVEL.
You might receive a promotional cash offer to upgrade during OLCI or maybe at some point prior when managing your booking.