Liftime license include free technical support (create an incident ticket) only the first 3 months after purchase.
You can pay for additional support (to receive technical support) for lifetime licenses are paid for at the rate of 20 euro per working hour
http://ispsystem.com/en/support/terms_and_conditions/
Quote:
4.4
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If an everlasting license is ordered technical support is rendered during the first three months of the Software Product use
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Year license includes technical support for all time until the license is active.