V-Flyer

Pandemic chickens are now coming home to roost and VA upgrade vouchers (from UK Rewards+ CC) which were extended during the pandemic are due to expire. One way or another, my partner and I have accumulated four vouchers which will expire in the next year. I am struggling to figure out how we will manage to use them. It seems unlikely that we'll be able to extend them again. Any ideas about how to avoid losing them altogether?