<prompt> Translate the following text to SwahiliCongress intended that mailers should be able to use the Postal Rate Commissions proceedings to assure that some mailers were not crosssubsidizing other mailers and to assure that postage rates reflected the costs actually incurred to provide service.  <response>: Kama ilivyoelezwa hapo juu, Congress ilikusudia kwamba wajumbe wa posta wanapaswa kuwa na uwezo wa kutumia kesi za Tume ya Kiwango cha Posta ili kuhakikisha kwamba baadhi ya wajumbe wa posta hawakuwa wakitoa ruzuku kwa wengine na kuhakikisha kwamba viwango vya posta vilionyesha gharama zilizopatikana kwa kutoa huduma. 