The seller has the right to reject your cancellation request if the order has already been processed. Once the seller rejects your cancellation request, the order will proceed to shipping as per normal. Please take note that this only applies to cancellation requests subject to seller’s approval – instant cancellation will be processed immediately.
You can only request for cancellation once for every order. As such, once your request is rejected or withdrawn, you would not be able to submit another cancellation request for the same order.