How to Contact a Credit Bureau | Credit Karma
May 21, 2021 · To freeze or unfreeze your credit with TransUnion, the bureau directs you to a page with options to complete the process online. It also lists a contact phone number of 1-888-909-8872, which is available from 8 a.m. to 11 p.m. Eastern time. Another option is to send a letter to the address below. TransUnion.
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