Join Date: May 2012
Location: Munich, Algarve, Sussex or S.F Bay Area
Programs: Mucci, BA Gold, A3*Gold, LH SEN, HH Gold, Marriott Plat, IHG Plat Amb
Posts: 5,547
I think this is "normal" or at least usual. I have always been able to change a one-way or return Avios booking once online and any further changes have needed a call. Open-jaw or connecting flights have never worked for online changes and always need that phone call.