Junk app and =P Want Power banks advertised as 30000mah that are really only 6000 mAh? They got Em!!! Lots of Em!! 512gb sd cards that are actually only 5gb? They got you covered with a broad selection of fakes there as well!!! aLIExpress and their sellers got you covered! Want the refund? Just pay the INSANE RETURN TO P.R.C SHIPPING FEE THAT COSTS MORE THAN THE REFUND BEING SOUGHT!! That's the RARE AF case where they even agree to a return. Despite the claim seen in app it's NOT guaranteed. A++