I'm presuming Honda Sta. Rosa na casa yan? You mentioned your car's a Civic.
Grabe naman sa gulang nun. They really want to strong arm you in to paying for labor & materials etc.
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It's like some hospitals in here in the NCR that implement a "no medication sourced from outside the hospital" policy.
Its a precaution to avoid treatment with counterfeit drugs daw.
As far as I'm concerned, it should be the patient's choice.