Not true, nor could you know otherwise because every effort to hold discussions over how much should be paid and by what means to pay it was refused by Saint Abe the warmonger.
I've read the legislation authorizing the confederate commissioners, and it states that they were sent "for the purpose of negotiating friendly relations between that government and the Confederate States of America," and only then "for the settlement of all questions of disagreement between the two governments." So unless the Lincoln government was willing to recognize the Davis regime as a legitimate government then there weren't two governments to negotiate questions of disagreement. So it cannot be termed an offer to pay for property seized by the Davis regime. It may have turned out to be so, assuming that the regime was serious, but it didn't because it fell apart over the first part of the instructions.