It appears your G Suite account *****.VN was acquired in a way that is prohibited under our G Suite Agreement . Your account needs to be converted to a valid edition  within 15 days if you wish to continue using it.
To convert your account to a valid edition, upgrade  to G Suite Basic before 27-June-2020. Your account will be suspended on 27-June-2020 if you have not upgraded it by then.
If you decide not to continue using Google services you can migrate your data . We recommend that you migrate your data no later than 24-June-2020.
Thank you for your prompt attention to this matter,
The G Suite Team
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Above message is the warrning G Suite Administrators received recently, as their G Suite Free (Legacy) account was acquired in a way that is prohibited under G Suite Agreement.
Those accounts will be suspended and data may be deleted if it not be upgraded before the date mentioned in the warning.
Administrators in this situation may contact Infolinks Cloud - G Suite Partner to get help and consultation.