a credit form/in the form of a credit

19:40 May 11, 2020 

Kada Snabdevač ispostavi fakturu, neće videti nikakve pare već će dobiti vrstu "kreditne note". Kasnije kada Snabdevač bude u obavezi da prosledi Kupcu neke "prihode" (po osnovu nekog drugog ugovora sa Kupcem n.pr. taj isti Snabdevač u ovom ugovoru je možda istovremeno i zastupnik Kupca u nekom drugom ugovoru i prodaje proizvode Kupca), Snabdevač će na osnovu the "kreditne note" (ili kako je već nazovete) zadržati isnos fakture od ukupnih "prihoda" koje je dužan proslediti Kupcu. Svodi se na oblik prebijanja međusobnih potraživanja.

19:22 May 11, 2020 

Pay to the Provider the invoice issued in the form of a credit with the paid total revenue.

(1) "Pay to the Provider the invoice issued" = the payment to the Provider for the invoice issued by the provider will be done

(2) .... in the form of a credit with the paid total revenue.

IOW "in the form of a credit with the paid total revenue" is not a description of the type of invoice
but is how this invoice will be "paid" IOW the payment for the invoice will be "in the form of", NOT the invoice itself.

There must be a commercial relationship between this Provider and the Buyer (of this Provider's goods or services) that GOES BOTH WAYS, so at some point this Provider will have to pass some "revenues" to the Buyer on the basis of some other preexisting contract.

This arrangement is basically a kind of "compensation" / "off-setting of mutual debts". Instead of the Buyer of Provider's services paying with money, the provider is given a "credit" and when the Provider has at some point to pass "revenues" to the Buyer, the Provider can take the amount of this invoice out of the revenues to be passed to the Buyer.

Seen this way, it makes perfect sense.