I find that the counters in the clan area are full of glitches. Yesterday I bought the 10x amulets for IC but they didn't appear in my clan screen until I'd done two or three raids. I have seen SoB counter do something similar before; the best way to test it is to use one sand and see if it still gives the same number of sands available; I've had that before where it shows 5/5 when I expected it to be higher due to event rewards or sands purchases, then after a raid it is still 5/5 or has gone up to 6/5 depending on what was missing before hand...