投诉信常用句型:Iamwritingtoyoutocomplainabout…
Iamwritingtoexpressmydissatisfactionwith/at…Ibegtocallyourattentiontothefactthat…Iwishtoreferyoutoanincidentwhichoccurred…,callingforsomeremedialaction
Iverymuchregrettohavetoinformyouthat…Iamtotally/completelydisappointed/upsettofind…Ifinditawful/quitedistressingthat…Myexperiencein…on…(date)shockedme
Icanhardlyputupwithit
Therearesomeproblemswiththe…thatIwishtobringtoattention
Foronething,thereis…
Foranother,…
Icanhardlystand/bear/tolerate/putupwithitanymore
Toimprovethesituation/solvetheaboveproblem,itisadvisableforyoutotakethefollowingmeasures:…Ilookforwardtoadaywhenwecouldreallyenjoyamoreefficientservice
Ihopethattheabovesituationwillbeimprovedassoonaspossible
Ifitisnotproperlysettled,Iwouldaskyoutogivemymoneyback,orIwouldcomplaintotheConsumer’s