Regarding replacementsupport.

[ishwarkature]

i want to replace in the place of xperia L as xperia C.

[Uliwooly]

Contact Sony 

http://www.sonymobile.com/global-en/support/contact-us/

[trd]

I want to replace in the place of xperia j

[Nabeel]

Replacements are not possible unless there are ongoing offers in your country so as uliwooly adviced, you both might wanna contact sony in your country to check for available offers