Maruti/Alto — service complaint

I got my also regn number DL 9C QS 2843 from dd motors mayapuri new delhi.The shockers were makeing some noise .When we took the vehical back in the evening an amount of Rs 340 was added to the bill as repair chages fro removeing and oiling the shocker.The vehical was not even 1 year old and still even after a 1 year guarentee from the company the dealer charged us. If the shocker was makeing a noise it should have been changed not lubricated.Also when we enquired for the same from the dealer officails there attitude was really bad the way they talked was harsh and thretening.It seems as if Maruti dosent have any check onj its dealers .If this continueses i think the image Maruti has greated over the years will get ruined in a very short span.I would defenately not recommend any one to go for a maruti product with theses can of authorised service providers.