Agreement to Accept Card Payments Supplier's signatory is authorized to enter into this Agreement on behalf of Supplier.* We hereby agree to accept card payments from WR Grace using our existing merchant services account and acknowledge that our existing merchant services provider’s processing fees apply.* To use CAPTCHA, you need Really Simple CAPTCHA plugin installed. Questions? Contact Boost at (888)-222-7122 or email us at vendorenrollment@boostb2b.com.