CS came back almost immediately with this
Here are the list of MCCs that are excluded from cashback:
MCC 4829MCC 5511MCC 5521MCC 5551MCC 5561MCC 5571MCC 5592MCC 5932MCC 5933MCC 5971MCC 5972MCC 6010MCC 6011MCC 6012MCC 6050MCC 6051MCC 6211MCC 6300MCC 6513MCC 6532MCC 6533MCC 6536MCC 6537MCC 6538MCC 6540MCC 7012MCC 7800MCC 7801MCC 7802MCC 7995MCC 8050MCC 8062MCC 8220MCC 9223MCC 9311MCC 9399MCC 9405MCC 9406MCC 8999
Edit: for reference, Revolut is currently 4829 wire transfers for topups. 6012 financial services is the code eg for settleup and comparable