Can I change a Universal 14 day ticket to Annual Pass

[Andi]

We have the Universal 3 Park 14 day ticket, purchased for 2021 but we know Universal have extended these until end of 2022.

Obviously we didn’t get our 3 week holiday this year but are hoping to go on 3rd January to use up DVC points that will expire before the summer.

We can only go for 2 weeks at this time of year and with our Disney Tickets it wouldn’t seem good value to do Universal as well.

Does anyone know if we went to the ticket booth outside the Universal Park could we pay to upgrade to an annual pass, or can we email Universal? Also if we can upgrade but not use would the AP stay valid until we could go again, say perhaps summer 2023?