Managed Migration, losing SDP and council tax exemption

Hi,

I have recently completed managed migration, but recieved a bill from council tax. I have always been exempt through the Severe Disability Premium from ESA.

Now it seems i need to prove severe mental impairment through a doctors certificate. I need to be both intellectually impaired with limited social functioning. The wording seems to exclude me as i have bipolar and ptsd, im not spectifically intellectually impaired and i feel it would be difficult to get my gp to sign me off on this.

I was under the impression that under managed migration i wouldnt be worse off but my CT is £1400 per yr! Even with single person living alone discount 5% this is an extortionate hike. They want me to repay £400 on 1st Jan!!

Also i notice the shift from 4 weekly payments to monthly with no adjustment means i lose a months money per year approx £965.

Im down 2k!! Am i missing something please 🙏

Thank you, i really appreciate the support. I was not aware of needing to contact CT prior to MM .. I will try this morning and see how I go.

Is the extra month UC payment lost due the shift from 4wkly to monthly just something we all have to suffer?

Many thanks
Sarah