Audi Bad Service

I have started using the Audi A1 from June 2017 and within a month i had to take it to Audi Braamfontien after receiving an error on my display screen about Faulty Filter.

Every time after taking it for checks and repairs it appears to be fixed then 2 days after the error pops again ,and they always advise me for a long drive which weekly i often run it but still

I have requested for the filter to be changed but no as now my motor plan is elapsing this month and as we speak no power in my car because of the same error and bad service.

in a space of a year i went to Audi More than 5 times for the same thing and i am not getting any justice with my problem .i wont recommend anyone and i regret the move to the bank and comes to push even escalate the matter further(Social Media.Papers and all)