Помогите, пожалуйста, с фразой

We understand that we will become liable to charges and fines should a Community Transit Document (NCTS or T-Form), issued by WHYTECLIFFS OF DOVER LTD for our benefit and against our instruction not be properly presented to Customs in the stated Country of destination within eight days of issue and, further, that charges may become due although alternative commercial evidence of the particular transaction being satisfactorily finalized is to hand.

затрудняет "is to hand"