FlyerTalk Forums - View Single Post - Upgrading a flight with avios that has been booked through BA vacations
Old Sep 14, 2018, 3:33 pm
  #2  
UKtravelbear
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Join Date: Nov 2011
Location: Brighton. UK
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Have a read of this.

https://www.flyertalk.com/forum/29235586-post7.html
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