Dear Anowotar
This has been a limited offer of a cash back paid directly by Miele Switzerland which meanwhile has expired. It had nothing to do with Digitec/Galaxus and was applicable only for the purchase of a new Triflex.
Keep your eyes open as there are still good deals available from times to times.
Best regards Peter
PS I am still absolutely convinced that the Triflex is the best hand held vacuum cleaner on the market - so better wait ;-)