STK Push Response:
Array
(
    [MerchantRequestID] => e919-49fc-a46e-1aed2df0fbfc13083204
    [CheckoutRequestID] => ws_CO_30052026122945011703177196
    [ResponseCode] => 0
    [ResponseDescription] => Success. Request accepted for processing
    [CustomerMessage] => Success. Request accepted for processing
)

Loan ID: 89