at first it's very efficient later when having troubles w/payment, they dont cancel a transaction. When u report a scammer they wont put red flag on them. They change the reward gift for some reason. And just recently, i sent $2 to my aunt and received it $1.94 then i sent $450 she said it's only $437! i was trying to cancel but cant. Ive bn msging the supprt but always take a long time to respond and until now waiting for nothing