Three of the nation’s largest mortgage servicers will no longer receive payments tied to their participation in the Obama administration’s main foreclosure prevention initiative until they improve their performance in that program, a senior administration official said Wednesday. Bank of America, J.P. Morgan Chase and Wells Fargo need to make “substantial improvements” to collect fees through the Making Home Affordable Program, which helps struggling borrowers by lowering their monthly mortgage payments. The companies failed to meet basic program requirements, such as properly contacting borrowers, the official said.