BTKLTD | BTK BILLING LTD is group of companies operating in ecommerce and transaction processing. BTKLTD | BTK BILLING LTD group is a leader in offering online vendors a cost effective way to distribute their products without the hassle and expense of running billing and collection systems.. BTKLTD | BTK BILLING LTD provides turnkey billing solution services to online vendors offering products and services, whether or not they have an existing Internet Merchant Account. About Us Terms Security Privacy Index