Originally Posted by
Fossiebear
Apologies if this is covered elsewhere but couldn't find the answer on scanning. Attempting to use ba.com functionality to upgrade a PE cash fare using a GUF and the results suggest very limited availability, certainly nothing like the I class availability I can see. Is this a known problem requiring a call to BA to book?
thanks
You have to call to book upgrades when using I class etc availability. You can only use GUF to upgrade online when using redemption space.