A suggestion for Sig Stone deal

So the Sig Stone deal is nice, but I think splitting it up could be better.
For instance:
-$10 for 3 star deal
-$10 for 4 star deal
-$15 for 5 star deal
And alow a max purchase of 2 instead of 1.
My reasoning for this is I do not need 3 star stones and I do not have any 5 star dupes so the 4 star is what I am interested in.
I would have been inclined to purchase a 4 star deal maybe even multiple times but the way that are now.
Just a suggestion and opinion for the game.
Thank you for your time
For instance:
-$10 for 3 star deal
-$10 for 4 star deal
-$15 for 5 star deal
And alow a max purchase of 2 instead of 1.
My reasoning for this is I do not need 3 star stones and I do not have any 5 star dupes so the 4 star is what I am interested in.
I would have been inclined to purchase a 4 star deal maybe even multiple times but the way that are now.
Just a suggestion and opinion for the game.
Thank you for your time
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