bad service from hirsch

On the 14 /01/2016 I order a filter for the pet friendly electrolux vacuum cleaner ..they had no stock and created an order. Heard nothing again..went there on the 20 /01/2016 I was told oops it was recorded but it was not ordered ...again the book was recorded and so called ordered ... no feedback from hirsch .went there on 11/03 was told it will be in on the 12th ..went in on the 19th to collect...was told it takes 3 weeks ...i waited NOW 2 months and there response was We have your contact details and will contact you once we have it ...how long do they think you have to wait and why they sell a product if they have not backup service and the attitude of the service repairs is ti say the least disgusting ..they do not communicate or give feedback and have a laid back attitude