L/C special instruction - 國貿工作討論

關於L/C開狀時因參照前人的資料，但特別條款有2條實在不懂，
請懂的大大幫忙解說...TKS!!

2.THIRD PARTY DOCUMENTS EXCEPT COMMERCIAL INVOICE AND DRAFT ARE ACCEPTABLE
依合約看來3nd party是指我司的境外公司，
所以是指不接受我司境外公司的INV和DRAFT?請問用意何在?

3.T/T CLAIM IS ALLOWED. [78]UPON RECEIPT OF YOUR DULY SWIFT CERTIFYING
HAVING TAKEN UP AND DESPATCHED TO US CREDITCOMPLYING DOCUMENTS,
WE SHALL COVER YOU AS PER YOUR INSTRUCTIONS,
BUT WITHIN A DEFERRED VALUE OF 3 SWISS,
NEW YORK AND CHINESE BANK WORKING DAYS AFTER DESPATCH OF THIS SWIFT TO US.

這個T/T求償到底在寫什麼??我逐字看了幾遍還是不懂??
倒底求償什麼??拜託懂得大大幫忙逐字解說一下，感激不盡...

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