Good luck with that chargeback. First you would need to provide supportive evidence for the chargeback to occur in the first place. If you are successful (unlikely), Frontier would note the chargeback (and thus loss of revenue for services rendered) and provide their own evidence to the bank, the successful resolution of which would mean they reclaim that chargeback. After which, they could lay a charge of theft, or chargeback fraud against you.
But, sure.. you do you; see how it works out.
If you don't like the game, fine. Just leave without all the melodrama.
Not quite. As far as bank / cardservices care about, all that's needed is a statement of "services paid for have changed, unhappy with new changes/services no longer have paid for value". The worst that would happen would be Frontier banning my account or hardware config or IP. Which honestly given this new system doesn't sound half bad. I'm sure other games will find more value in my money and not make sweeping changes that ostracize half the playerbase that critically examines their efforts (while the other half for lack of a better word.... is basically a bunch of white knights) and don't want to accept garbage as the only means.