1. Click "Add to Cart" on item page, not "But It Now".
2. Searching and click "Add to Cart" other items what you want. 
3. Click "Your Shopping Cart" on right-top corner after finish shopping.
4. Click "Request an Invoice" on "Your Shopping Cart".
5. I'll change shipping charge as below and send invoice.

Ship to US

1. $1-$50 total: 1-10 notes $0.60 or 11-20 notes $0.90 or 21-30 notes $1.20 without track.
2. Over $50 total purchase: $3.00 ship via USPS First Class Mail with track.
3. Apply extra if Buyer request USPS Priority Mail ($7.00) or Express Mail ($24.00). 

Ship to International 

1. Ship worldwide $1-$50 total: 1-10 notes $1.50 or 11-20 notes $2.50 or 21-30 notes $3.50 without track.
2. Ship available "E-USPS DELCON INTL™" service countries only over $50 total purchase. Please check below link for available shipping countries: $14.50 per shipment with track (around $13.00 + around $1.50 eBay & Paypal fees).
   
   pe.usps.com/text/imm/immc2_022.htm
   Australia, Austria, Belgium, Brazil, Canada, Croatia, Cyprus, Denmark, Estonia, Finland, France, Germany, Gibraltar, Great Britain and Northern Ireland, Greece, Hungary, Iceland, Israel, Italy, Japan, Latvia, Lebanon, Lithuania, Luxembourg, Malaysia, Malta, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Russia, Saudi Arabia, Republic of Serbia, Singapore, Slovakia, Slovenia, Spain, Switzerland, Turkey
   
   
3. Buyer must contact first before purchase if your country is not in above "E-USPS DELCON INTL™" service countries.
4. Apply extra if Buyer request USPS International Express Mail ($63.00).