Hero Motocorp — problem in my bike

Address:

Bareilly, Uttar Pradesh, 243001

I purchased my bike in october 2018... It has been some around a year old bike splendor (Up25 cb 4233). I got all the services on time and have paid all the bills.. I have all the receipts with me. When i took my bike for the last fifth service, the service guy told me that there is a problem in so called piston in engine, the sound of the engine was not up to mark. They told me install the new block kit after 30 day or may be more than that and told me that i will have to pay some around 1000 rs for the recovery. Now thats horrible! Why should i pay a single money when i got all my services on time... I am not going to pay any extra money except the charges for engine oil else will go to the consumer forum... Help me plssss... I am not so rich to afford such expenses... Hope the company will pay attention to my problem and will get back to me will the better solution as soon as possible...