silent contracts account.

[Анна Ф]

We also see cases where the supplier invoice agrees to the client invoice but then the agency invoices the supplier separately for the 'mark up' component, so please look at this area too. Where client contracts are silent, mark-ups may still not be permitted in cases where we legally act as "agent" rather than "principal", unless otherwise specifically agreed with the client.

[Анна Ф]

Вот более широкий контекст:

Select a sample of client agreements which state that no mark-up is permitted on third party costs and select a sample of client invoices for these clients and check back to the associated supplier invoice to check whether the mark-up clause has been complied with. Multiple supplier invoice testing NOT required. Please look carefully at this area in cases where another WPP company has performed the work as there may be issues here. We also see cases where the supplier invoice agrees to the client invoice but then the agency invoices the supplier separately for the 'mark up' component, so please look at this area too. Where client contracts are silent, mark-ups may still not be permitted in cases where we legally act as "agent" rather than "principal", unless otherwise specifically agreed with the client.

[Анна Ф]

Подходит ли вариант?
Silent contracts: в этих контрактах не указано (не имеется определенного положения), что сумма не может быть увеличена.

[YelenaPestereva]

Даже если договоры с клиентами об этом умалчивают...

[Анна Ф]

Вот еще такой вариант, как он -

Не содержит положения о запрете надбавки на стоимость контракта

[YelenaPestereva]

На мой взгляд, "надбавка на стоимость контракта" звучит не очень хорошо. А "сумма не может быть увеличена" вызывает вопросы. Какая сумма и в каких случаях? Вообще не может быть увеличена? И т.п.