In principle, the losing side in a case is liable to pay the counterparty’s legal costs. This is an amount defined by law, depending on the nature of the case (the court hearing it and the amount claimed).
Costs are a flat-rate contribution to the successful party’s lawyers’ costs and fees. They may not be regarded as fee rates, as they are not intended to recover the full costs and fees.
The winning party cannot claim costs unless they engaged a lawyer to act for them.
The lawyers for the party receiving this amount may reduce their fees accordingly.