The government authorized and gave you the $7.8-million refund, and you in turn gave it back to the farmers, which was the right thing to do.
If I understand this correctly, the CBSA now has asked for that refund back, which you have already distributed to farmers. On top of that, the CBSA is asking you for interest payments, and they're the ones who gave you the authorization for the refund and refunded the money.
Is that correct?