Steers Watercrest

What is the point of Multiply Money supposedly being affiliated with Steers if Steers cannot accept a Multiply Money payment code?? As a single mom, money doesn’t flow easily, as for many out there. To be able to take my boys and a friend out for a simple icecream come became an embarrassing situation of payment when Steers in Watercrest couldn’t accept my payment. Are Steers affiliated with Momentum money or not???