Samsung L 700 — company has not solve my problem after taking my hand set for 28 days

i purchase my handset[protected] after 3 months i got battery problem. then i go to samsung care center located at nagpur they told me not to use memory card on my hand set for 2 days but after 2 days no differce with the performance of battery after that i go samsung care and give my handset for 1 day. samsung care person told me not problm with battery backup.but i am facing problem of battery backup. and after 6 months later i face many problms on my handset. i goto samsung care 1)problm with memory card has not detect on my phone.2)camera on stand by.3)phones masessage memory full it has inbuilt 500 massages but 230 massage after it shows momory full.for that they taken my hand set for 28 days form 1-7-2009 to[protected].they replece my phones mother board.but i am currenyly faceing problm of massages and battery.for i goto samsung care they told me do what u want. samsung care personl whose name is vijay dubay and engginear anand sahani behaviour is not good. my handset imei numer is [protected] and my phone number is [protected].please help me.