INSURANCE NONE EXISTANT

Put in a claim for my lost phone. First time I phoned I was told the device doesn't have insurance, when I phoned again they told me the device is insured. Submitted all the necessary documents and was told I was approved for R 7500.00 when I went into the branch they told me no I'm only approved for R 3600.00 they told me to phone I phoned and again I was told ok we approved you for R 7500.00 went to the branch again only to be told no you're not. I'm sick of driving up and down and the lies told by Vodacom.