Swiggy Instamart — Order was different

It is happening to me many times that I order something else and I get some if I order someone else to flavor it, then they give me another flavor. If I had ordered any other milk, I would have sent a tetra pack a couple of times I have also got an expired product. On complaining, these people say that we will highlight your problem and nothing like this will happen in future. But still the same thing happens again and again order no[protected]