To check the function of sending a message OpenCart

Hello!

On the OpenCart website also has a function to send additional messages to the buyer, after changing the order status to "Processed".

In admin panel under "Mail" set time delay sending the message in minutes – variable – config_mail_yandex_market

But for some reason whatever cipro did not put delay, sends within one minute and the desired delay of 48 hours.

Who can help?

Here is the beginning of the function is in the controller card product:
"public function get_review_from_email()
{
if(intval($this-