by a lump sum payment(Example: In the case of cancellation of motor insurance policies, customers who have paid the insurance premium in full by a lump sum payment can be entitled to a percentage of the paid premium as a refund. Пазенко Георгий)
a single payment(Example: The costs shown in the table are for both a single payment and monthly contributions to buy various additional pension benefits.(Из пенсионного страхования) Пазенко Георгий)
