I think going via employer also ensures the correct amount of tax is deducted?
This is the primary reason. If you are paid ppl by your employer it can be correctly taxed, taking into account any paid leave you receive from employer etc. unless you are not rerunning to your place of employment or employer has an over riding reason not to register ten it has to be paid by your employer. If they refuse for whisper they can be fined


They are under NO obligation to pay you the ppl until the money has been paid to them from clink.