To contact TurboTax customer service/support use their contact website during business hours. If the problem concerns any type of refund for fees, use the key words billing issues and do Not use the word Refund or you will get a phone number for tax refunds.
See this TurboTax support FAQ on how to contact Support - https://ttlc.intuit.com/questions/3401489
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Use this website to contact TurboTax support during business hours - https://support.turbotax.intuit.com/contact/
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Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax