That is not answering the question and Sorry i already solve this question awhile back but my superior didnt want used fortumo anymore since googleplay developer can be implement in our country so we change to googleplay.
here the tips bit :
//checking if your item has been purchase
if ((MpUtils.getNonConsumablePaymentStatus(youractivity.this,"your service-id",
"your in apps secret","your product_name")==MpUtils.MESSAGE_STATUS_BILLED)
{
// Do something here - example open new stage, new level, etc
}
these are 4 type of status you can implement
static int MESSAGE_STATUS_BILLED
Constant value for message billing status indicating that payment was successful.
static int MESSAGE_STATUS_FAILED
Constant value for message billing status indicating that payment failed.
static int MESSAGE_STATUS_NOT_SENT
Constant value for message billing status indicating that no payment has been made.
static int MESSAGE_STATUS_PENDING
Constant value for message billing status indicating that payment is still pending.
more info here:
http://fortumo.com/in-app-payments-javadoc/android-9.1/mp/MpUtils.html