The module use the amount of commerce_order_total to process the payment in commerce_sermepa_process_transaction.
But if you have used the hook_commerce_sermepa_gateway to alter the amount, later, when it is processed the payment amount it's not the right one.
And sermepa returns the right amount payed in the variable Ds_Amount.
In line 531 of commerce_sermepa.module:
$transaction->amount = $order->commerce_order_total[LANGUAGE_NONE][0]['amount'];
I propose instead:
$transaction->amount = $feedback_parameters['Ds_Amount'];
Needs review
1.4
Code
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Fixed, thank you!
Please download and review the latest dev release.
Automatically closed - issue fixed for 2 weeks with no activity.