Amul / Gcmmf — Irregular supply

This is about an Amul Distibutor of my colony in Lucknow. Now my aunt has a grocery shop and also has dealed with this distributor who agreed to provide dairy products on time everyday. But he is very irregular, lies about arriving on time and doesnt picks up calls when she calls him regarding being late or not coming. Its not about one day, or two, sometimes it happems multiple times consistently . She is a single woman working here and runs her financials with this work. Its very troubling for her . She has now decided to cut off his supply and switch to another dairy company for supply .