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&lt;p&gt;&lt;b&gt;Location/place&lt;/b&gt;: obra sonebhadra&lt;/p&gt;<p><b>Name of company/service</b>: karbonn</p>mai ne ek karbonn a1 handset 4-02-12 ko liya tha. Mai ne jab mobile liya tha tabhi se usme screen problem thi mai ne ushe bahot bar service center me bheja par ushki problem abhi tak sahi nahh hui hai. Mai ne company walo se set ko replace karne ko kaha to wo nahi kar rahe or set abhi tak ushi taraha hai ushme or bhi problem aati ja rahi hai . So please help me.& given me a new handset.