Eternal Bonding and Upgraded Vow Renewal?

Hey, so after a Google search and only finding partial information, figured I'd ask here.

Last year, my husband and I did an Eternal Bonding on the Standard (free) plan, and we are considering doing the Vow Renewal/Anniversary. We are trying to confirm if we can purchase a Gold or Platinum plan for this anniversary, or if we will have to stick with Standard, since that's what we originally got. AKA, can we upgrade our anniversary?

Thanks!

The anniversary doesnt need to be purchased. If you do it, you ARE able to do the Gold/Platinum stuff. So you CAN get the minions and mount and whatnot that you missed out on before.

Oh I know the anniversary quest is free. :) Yeah, I just wanted the ceremony customization (and yeah the rewards) this second time around, and didn't know if we had to pay or if we'd be locked in to the previous standard option.