AOS & IV fee payment misleading with PO.Box

[shersita 0]

Hello all.

I sent a money order with aos & iv fee payment to NVC on Sunday 18 of 2010, I use the address below :

National Visa Center

PO Box 790135

St. Louis, MO 63179-0135

Which I saw yesterday that belongs to the payment only for AOS fee unfortunately I combine both fee payments (aos & iv) together in 1 money order and send it to the address above, instead of:

National Visa Center

PO Box 790136

St. Louis, MO 63179-0136

I know is the same St. Louis Address but the Po.Box number are differents now I'm not even sure if NVC will cashout my money order or what's going to happen or what should I do I call NVC today morning, I said to the operator that I mislead the Po.Box for the money order, she asked me if I put the St.Louis address, I say yes but I put another Po.Box number... and she told me like don't bother to much about the Po.Box number if you send it to the correct address (St.Louis) that should do it, but I don't feel very sure

Can someone provide me some recomendation or what should I do?

Also, after NVC receive the USPS mail with the (aos & affidavit and money order) package, on how many days they notify the petitioner that both fees are paid?

Thanks in Advanced.