No refund no return at any circumstances after purchase.
If checker have any bug or have any problem you can contact me, i will fix it if possible.
If checker Server/api dead, i will try to fix it but there is no guarantee.
At any time i may update the price. but who already own the checker he don't have to pay anything if price increase.
You guys know all brute/checker depends on server, if server dead or not able to crack anymore then the checker will be closed.