advance payment guarantee(англ. термин взят на сайте Fortis; там же приводится определение этого термина: In issuing an advance payment guarantee, the guarantor bank undertakes to refund any advance payments made by the buyer if the promised supplies are not delivered or if the work described in the contract is not done. This guarantee can sometimes be reduced as deliveries occur or as work progresses. Alex_Odeychuk)
