Because of some flight changes in 2022 I accumulated about $200 in Wallet funds which are about to expire. Most of my future travel is already booked (Alaska prices were non-competitive for my itineraries anyway), so what are my options to save the funds from expiration? Would making a dummy booking using refundable fare and canceling it later work? Or can I simply call and ask nicely to extend them? I have no status with Alaska if that's important.