Farage is using the UKIP finance problem as an angle to beat Carswell with and get members to force him out the party. He wants to force Carswell to take all the taxpayers money he is allowed; So Carswell will get the blame. for UKIP homelessness. Carswell of course does not want to take the money and have his office infiltrated by self seeking Faragistas.
Neat huh? One more dirty trick from UKIP's store of dirty tricks.