Quality of Smeg Blender

I bought a Smeg blender, I seldom use, on 27 March from this store. 2 months later, I noticed that it was not working perfectly, as it would move the contents aside, instead of blending them. I since returned it to the store on 5th June and they promised to fix it. They took four weeks to return it, albeit theybsaid it take 7-14 days (and only after I complained). I received it on the 1st of July, and NOW it is doing the same thing. I cannot accept that a product of such a premium brand as Smeg, that is intermittently used, can only work for 2 months and 8 days and breakdown for repairs. I advised the store that I am of the notion that once you start repairing, you will keep on doing that. Now I am back to square one and have to report the same problem, after I have been told it has been repaired.