If maintenance fee for ecoinvent is not paid for 5 subsequent years, the 6th year will sum up in 3750 euro

Question

If I buy a Commercial Single-User Licence (perpetual) for ecoinvent v2.2 & v3.11 and I don’t pay the maintenance fee for the next five years and I need the update of the sixth year, I should pay again 3750 which is the price of the Commercial Single-User License;