input: [If your letter says:] Credit line increases are not available upon request for this type of account. [What that means] Unfortunately, your account is not currently eligible for a credit line increase upon request. [What you can do] 
output: We're working hard to update our credit line increase policy and things may change in the future, so please check back with us again. We regularly review accounts, so if your employment status or income change, be sure we have your updated information.