[285]投诉服务员

I have a complaint to make. 我要投诉

complaint是complain的名词。 complaint的t要失爆

be badly treated by..  被..无礼对待

badly的d失爆， treated的第二个t弹舌

we're sorry to hear that: 听到这事很遗憾/抱歉

may I have your ... 是一个礼貌性的问句。

deal with the matter  ： 处理这个事情

with the中的第一个th失爆

I have to apologize for that: 我为这件事致歉

I promise it won't happen again：保证不会发生

t 要失爆， happen again要连读