AdWordsAdvisor provides some info regarding trademark dispute issues with respect to AdWords.
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Trademark dispute issues are not really my bailiwick, as they lean towards more legal than AdWords in a sense. However I do know that:
* Turn-around time varies with the volume of requests being processed - and of course Google will work to complete your request as quickly as possible.
* Yes, you will receive a follow-up notification, and
* The Trademark Complaint Procedure is available in the AdWords FAQ: https://adwords.google.com/select/faq/guidelines.html#7
. Once there, just click the 'trademark complaint procedure' link to be taken to the complete document.