No, you do not have that capability on the web to use multiple cards on one order. This capability is only available at store locations. If you need to use multiple cards then you will need create multiple orders.
You can visit the Billtrust site and select “Forgot Your Password” link.
BMC Stock Holdings, Inc. and its subsidiaries are not required to collect sales tax* from the states listed below. However, your purchase could be subject to your state's use tax laws which may require you to remit this tax directly to the tax authority. This purchase is not tax exempt merely because the transaction is executed over the Internet or through a catalog or other remote means. Please check with your state's website or tax regulations for further instructions in reporting any required use taxes.
*Alaska, Delaware, Montana, New Hampshire, and Oregon have No Sales and Use Tax, but some localities have a Sales and Use Tax and you should check your state’s website or tax regulations for further instructions in reporting any required use taxes.