Was going to convert some vouchers this evening into Avios,just £2-50 of the three vouchers that would go out of date at the end of May, however could not find any with the appropriate date. They were there a few days ago along with a reminder that were shortly to go out of date. The value of the vouchers still in my account remains the same as it had been. I can only presume because of covid19 the vouchers have been extended as I have an unusual value of vouchers dated 11-2020. Will keep a check on things.