Update on this issue. My wife and I were both PM for 2022 and both requalified for PM for 2023. In February, I had checked both accounts to verify everything was as expected. Both she and I had four drink vouchers with a January 2025 expiration in our respective accounts at that time. Last week, I took my first flight this year where I was not in F or C+ and thought that I might want to use a drink voucher. Turns out I had none in my account. My wife checked her account and hers were also gone.

This afternoon, I called Delta to get them reinstated (having seen this thread describing the only way to get them back). The person to whom I spoke said all my vouchers had expired in January. I explained that I had some with 2025 expiration dates earlier this year and stated that one generally gets four drink vouchers for qualifying as PM. My experience - with many years as PM/DM - has been these have an expiration date consistent with the PM year.

She did the "call someone else" thing and eventually got the vouchers reinstated to my account. She also said that I did not receive any as a "welcome to PM" because I was already PM when I requalified for 2023 PM. I tried to explain that I actually had received them, as I had seen them in my account earlier this year and that the protocol she described has not been the way it has worked in the past however many years Delta has been giving out these vouchers.

Bottom line: I got back the vouchers that had been removed from my account (which seems to have been coincident with the "new and improved" SkyMiles summary graphics). Royal pain doing so, though...now we get to do the same thing for my wife's account.