CW can be very fussy. I used Citibank, taken over by UOB. Plenty balance all the time, but since there were two accounts and they were not prepared just to follow the balance in the monthly statements it was rejected. Thankfully I had a plan B, another account with another bank. I went back to UOB to have them state that both accounts belonged to me and were continuous, but I can't tell the result at CW, because they went with my plan B. Took me two days.