First post so if i get anything wrong please forgive.
This is a really good deal for a great phone. 10 months free on a 12 month contract, includes 600 minutes and 500 texts, cashback is via redemption, but e2save are part of the carphone warehouse so no problems there.
Go via quidco for a further £36.50 back making the effective cost of the contact £3.62 per month.
P.S I think it may be on contract.