 WEST READING, Pa.--BUSINESS WIRE--- CUBI--Customers Bank, a top-5 ranked Paycheck Protection Program PPP lender in both 2020 and the current round of federal stimulus, recognized that some of the smallest businesses, including sole proprietors, independent contractors, self-employed individuals and mom-and-pop businesses, as well as those with Individual Taxpayer Identification Numbers ITINs continue to struggle to access the federal stimulus they need due to the calculation method for PPP loan a 