گله کردن

I’m sorry to say this but…

I hate to tell you but…

I’m angry about…

I have a complaint to make…

Thee seems to be a problem with…

I’m afraid there is a slight problem with…

Sorry to bother you but…

I’m not satisfied with…

Wouldn’t be a good idea to…

There appears to be something wrong with…

I was expecting… but…

Sorry to bother you but…

I want to complain about…

I’m afraid I’ve got a complaint about…

I have to make a complaint about…

I don’t understand why…

Excuse me but there is a problem…

Would you mind…?

Accepting a complaint

I’m so sorry, but this will never happen again.

I’m sorry, we promise never to make the same mistake again.

I can’t tell you how sorry I am.

I wish I never happened.

Rejecting a complaint

Sorry, there is nothing we can do about it.

Sorry but it’s not our fault.

I’m afraid there isn’t much we can do about it.