This is really disappointing on a number of levels.
I only bought plus on 30th Nov so essentially have to pay again if I want updates past 1.0 and I would imagine that 2.0 will appear sooner or later to get people to upgrade - if that is actually what is offered as others have pointed out.
The discount doesn’t work for me at all - even on the pay by card option.
The pricing seems a bit off $29.99 does not equal £29.99 it equals about £25 (just under actually) & ¥ 3200 is around £22 currently & those take into account the poor performance of GBP recently! So even if I could take advantage of the offer I would be paying the same as I paid just under a month ago.
Its nice that you have free offers for gmail users, but I use google apps (GSuite). Not for commercial reasons but because it better suits my needs a consumer so that is no use to me.