Or they didn't really want the change. Or (devil advocate) maybe they had a very good reason you did not know. Like, they asked repetitively for that before. It

Or they didn't really want the change. Or (devil advocate) maybe they had a very good reason you did not know. Like, they asked repetitively for that before. It takes a special straw to break a camel's back. This reminds me of the M&Ms color in rock concerts artist room: a canary in the mine for the venue having ignored more important requests.