Bajaj discover 125cc bike complaint

Dear sir, I have purchsed bajaj discover 125cc bike from yamunaji bajajjunagadh as on 011, then in that month meanse 28/12/2011 I had made a call to its supervisor for liking oil in front right jump, so he had told me that just come and repair within 24 working hours. Then on I used to go there minimum 6 (six) times,then after there are many problems like less average (40 to50 km/Per ltr.) Vibration in 50 up speed as well as in headlight, then also each and every time they used to tell me that the problem will be solved at this time, but in current time there is no any major change in that condition. Then I called to customer care and they have forward my complain to kalikaji bajaj, but from this centre I couldn't got proper service and the problem continue perusing the same condition, so please is there any solution about the same then please do the needful. Hopping for possitive reply............... yours faithfully, paras sabalpara. Mo: 7765