Hero Motocorp — uneven noise coming from bike after service

Dear, my self sandeep kumar from patiala. I went to s&s goyal agency on 26jan19 for servicing of my super splender bike hr16t9666 & mob. No.[protected]. But after servicing of my bike i observed uneven noise from bike. After that i went back to agency and asked the supervisor to resolve it. After that bike alloted to technician to resolve it but its not resolve it and handed over to me told me it resolve. For your kind information its not first time its second time this problem happened after servicing. I m not satisfied with company service agency. Plz sir look in this matter