Isaac , good day to you. 
Can you please ad this code to the client's website?
https://sculpt.skinfocused.com

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})(window,document,'script','dataLayer','GTM-TMN8C7F');</script>
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Hector   - Good day to you too!

Can you please ad this code to the client's website? - ADDED

Thank you Isaac. 
Once I get status on Gtag, I will follow up. I will either create new tag or gain access to their existing one.