403B & 457 Deductions

We converted from QB desktop to QB online.  We are told due to "system limitations" that QB online does not support a 457 payroll deduction code.  Our employees are allowed by IRS code to contributed to BOTH a 403B retirement plan AND a 457 retirement plan.  Intuit refused to set up a 457 code therefore we cannot process our payroll accurately for our employees.  HELP?