Password reset not working

This appears to be an account related issue and the bug tracker does not have access to the appropriate resources to help you with this problem. Instead, please contact Mojang Support in order to receive assistance, regarding your concern.

It is most likely a temporary issue on Mojangs end, try send the request again in a few hours and make sure your email is not blocking Mojang emails.

If it persists, do take Avoma's advice as support is capable of solving the issue (perhaps your mail servers need updating?)