I bought two sim only contracts with Life Mobile last month, which is very good value. I bought them through TCB but neither of the two transactions track (they were made with a week of gap between them).
I normally get transactions tracked but not LIFE mobile. I raised query and TCB has had a decline from LIFE Mobile, without giving any reason, which is often the case with rejections. I am aware that cashback is never guaranteed and is always a bonus to have.
But I would be interested to know if anyone has ever got any cashback at all from LIFE mobile (through TCB, quidco or anyone else) as it is odd that neither transactions track and declined when I don't tend to have problems with other mobile providers.