<prompt> Translate the following text to SwahiliOne can surmise that a competitive postal service would do a better job of presenting technologically feasible, low-cost product options to mailers and either rejecting non-conforming pieces or levying surcharges.  <response>: Mtu anaweza kudhani kwamba huduma ya posta ya ushindani ingefanya kazi bora ya kuwasilisha chaguzi za bidhaa za teknolojia inayowezekana, ya gharama nafuu kwa wauzaji wa barua na ama kukataa vipande visivyofaa au kulipa ada za ziada. 