shut (one's) ears to (someone or something)
To willfully ignore or refuse to listen to something or what someone is saying. The company is being accused of shutting its ears to employees who have presented complaints of harassment or bullying in the past. We can't shut our ears to those with differing political beliefs; they have as much of a stake in this country as we do.
shut/close your ˈears to somebody/something
refuse to listen to somebody/something; ignore somebody/something: The government has shut its ears to our protests.