I am currently in Dubai, it is unprofessional of any financial institution not to work by bank coordinates therefore Polo Trade Finance normal practice is once the payment is made and it has to be cleared in their account will immediately instruct the issuance of the Letter Of Credit with in 3 hours.
No financial institution or international bank will work in any other way and particularly when issuing bank instruments. You have received the draft copy of the LC which is an absolute
letter of intent to issue the original. Top AA rated banks and there accountancy firms would charge for this service and in this case it has been reneged on a few occasions.