Payment Plugin: Multicards
Login into multicards merchant interface, then open Edit Orderpages -> Page you specified in config
Set:
Post URL to:
https://example.com/amember/payment/multicards/ipnSilent Post : yes
Post Fields :
item1_price,item1_qty,user1,order_numSilent Post Password: Enter same password that you have entered in Multicards plugin configuration
AllowedReferer:
https://example.com/amember/signup
It's all