You used the wrong material.
We can´t ship the parts until next week.
You´re charging us too much.
The activation key doesn´t work.
Your purchasing department lost our order.
We´re not happy with the installation work.
No, I can´t do that.
Your antivirus program is causing problems.
It looks like your antivirus program might be the source of the problems.
The installation work could be better.
I´m afraid next week is the earliest we can ship the parts.
It sounds as if your purchasing department might have lost our order.
I´m afraid that´s not possible.
It looks like you might be charging us too much.
The activation key doesn´t seem to work.
It seems like you used the wrong material.