Like a money gift from a friend, money requests from Kin groups are not income so they do not need to be declared as income. If your benefit advisor is uncertain, you should explain how your group works and that you are contributing equally to the amount you are receiving.
Threshold
However, if funds receives pushes you over your threshold, then it may cause a reduction in your allowance. Make sure you know what your thresholds and allowances are before requesting money.