Their policy says that the information they collect is used to "Send you marketing communications (see the section below for information about how to opt out of these communications at any time)" and to "Monitor and analyze trends, usage, and activities in connection with our Phones and Services, including to generate de-identified, anonymized, or aggregated data" and to "Target advertisements to you on third-party platforms and websites (for more information and to opt out, see the Targeted Advertising and Analytics section below)"

Remember that "de-identified" and "anonymized" is a lie. De-identified data can be re-identified, and anonymized data can be de-anonymized. Often trivially. There are even situations where individuals can be identified from aggregated data.