Faulty fuel pump

I bought a fuel pump at the beginning of May and it was faulty, took it back same day they took it in for inspection told me it will take 2 weeks to get the report. No one calls me and update me with information, every time I phone in they have nothing concrete for me it's almost a month now I'm still waiting still struggling to get to work every day I'm so disappointed in them I mean I paid R4.6k.