Why is no signature required when I used my Instapayment Prepaid MasterCard® card in the traditional manner (i.e., swiping the magnetic stripe) at certain merchants?
MasterCard has special rules for certain merchants that are included in its “Quick Payment Service” program. This means that some merchants will not require you to sign for a transaction. This QPS program is intended to help speed the payment process at merchants such as fast food restaurants, movie theaters, etc. However, not all merchants participate in the QPS program so you may be required to sign a receipt regardless of the purchase amount.
