ACS Borrower Login Customer Service Numbers Home» ACS» ACS Borrower Login Customer Service: +1 (800) 835-4611 Collections Department: +1 (800) 784-5309 CPS Service: +1 (800) 826-4470 Specialized Servicing Department: +1 (800) 508-0806 Loan Department: +1 (800) 835-4611 What is ACS Borrower Login in the Process of?ACS Borrower Login is support services render by the education services to members. The services allow loan borrowers and other beneficiaries to log in through personal accounts and view all details about the payments and benefits. The ACS education services provide customers support to answer the calls of clients and also provide support to make payments and repayments. ACS Borrower Login support helps members to collect the details of debits and also allows them to access the history of transactions.