Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: IB+ Gold, TK E+, Hyatt Globalist, Marriott LTP, IHG Diamond
Posts: 14,196
My IB+ password is a combination of letters and numbers and I can quite happily Combine my Avios.
I suggest you set your IB+ password to be exactly 6 letters and numbers, which mimics what the old IB+ PIN length was.