Estimates allowance is not changed (10)

I believe the answer is:

quotations

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'estimates' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Perhaps you can see an association between them that I don't see?

'allowance is not changed' is the wordplay.
'allowance' becomes 'quota' (I've seen this before).
'changed' indicates an anagram.
'is'+'not'='isnot'
'isnot' is an anagram of 'tions'.
'quota'+'tions'='QUOTATIONS'

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I've seen this clue in The Irish Times.

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