LeiaOfAlderaan is correct.
They switched to e-tickets for all purchases of tickets for 2020 trips. Switch happened around mid- December I believe, but I don't remember the exact date off hand. The linked thread in pharmama's comment has this information, though.
One is sent a voucher first on initial purchase, yes, but the voucher now states on it to wait for the e-tickets to be emailed 30 days prior to the stated days off the trip. One will receive a "straight to the gate" e-ticket. So no more having to exchange vouchers at the ticket booths.
It is still true one needs to call, but there is an email and extension number for Betty (who works for LMTC and has very kindly joined these forums to answer questions). She has been incredibly helpful.