Terrible Service (no service)

Ordered aerators for taps and was told they are in the warehouse which will take about 2 weeks to get. Why does it take 2 weeks to get something they have stock of in their warehouse?!! Anyway over a month later still chasing them, no luck. Speak to any plumbing shop and they will tell you to stay well clear of Grohe as there is no after sales service in SA and ordering is a nightmare.