Do ADs cancel often?

[Acrobaticlama]

Got a call saying a watch I had asked for was coming in and if was still interested, confirmed, discussed payment options and was told they’d be in touch very soon. Didn’t hear anything for weeks, spoke to them last week essentially to be told “what are you talking about” then a little while later “oh yes we did mean to give you one but Rolex supply issues eh? So unpredictable”

It was clear that she had forgotten and the watch was given to someone else.

It was a real kick to the teeth and I was wondering how often this happens.