RMAs receiving ATO 'amend your income tax returns' letters

Recently RMAs are reporting having received letters from the ATO which ask them to amend their tax returns. Migration Alliance is in receipt of emails from RMAs such as the following:
"Dear Sir/Madam,
Greetings!!!
As I have understood MA has been always there to help/guide the Migration Agents with any difficulties they come across time to time.
Recently lot of RMAs' has received notice to amend the tax returns from ATO. I was wondering if it has come to your notice and if there was any useful tips to handle the situation. Your support in this matter will be highly appreciated. Thanks for your cooperation. "
Migration Alliance believes that this is an ATO scattergun approach with business owners who are also RMAs. If you have any concerns please speak with your accountant. If you have nothing to amend then please have your accountant write back to the ATO advising them of 'no amendments'. Please seek advice from your accountant.
...