i am afraid that the fact you are in receipt of income support means that you are not entitled to apply fr a spousal visa for your husband as you have to show that you can live without recourse to public funds
i have researched it a little further and the requirement that you have to show that you and your spouse can maintain your spouse without recourse to public funds has been in place now for some time but it is possible to make the application on the basis that there will be no requirement for any further public funds and a web site setting out the requirements is here
it is possible but in fairness it may take longer than you originally expected - but it can be done
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