Originally Posted by
TravelManBiz
Thank you for the reply. I guess since BA11 and BA15 are so close, I would not get the money back anyway if they move me to BA15. My travel insurance will pay me back all the money, but I need to cancel BA ticket first and get back as much money as possible before insurance pays the rest. Good to know I can claim back the Avios also

And a voucher is not counted as «money» so I rather claim from insurance instead of taking a voucher.
Your OSL-LHR flights may also be canceled.