Housing and field trip payments completed

I wired transfer two separate payments for housing and field trip to Woori bank (Yonsei branch) through Bank of America. The cost is $35 for each transaction (the transfer fee is not the same for all banks). The process was fairly easy. I basically brought information provided in YISS invoice and housing application to my bank; and a banker helped me complete other steps. There are two types of information that you should pay attention on:

• Virtual account numbers are different for [housing] and [field trip + excursions]. From what I've learned, these numbers are used to distinguish me from other students who also make payments for YISS. Thus, don't forget to clarify this to your banker before he/she sends out your payments to Woori to avoid unexpected delays. 
• There's only one swift code. Even if you make multiple payments, this code does not change. The swift code is used to wire transfer internationally. If you have a Korean bank account and transfer your payment using this account, you do not need to use this code.

Note: Bank of America can deliver the exact amount you want in KRW to Woori bank. The exchange rate is subject to change per day. 

I heard from previous students that it typically takes Yonsei approximately 3 days to a week to receive your payments, which seems to be true. I received a housing payment confirmation from SK Global four days after through email. I still haven't heard from them with regards to my field trip and excursion payment. I'll patiently wait till the end of this week with an expectation that they'll get back to me with a confirmation. Otherwise, I'll personally contact them to confirm.