Migration/Transitional protection?

No, that will not be the reason because claiming carers element for look after someone else will not affect Transitional Protection if your ESA included the SDP.

Did your ESA start before or after April 2017? Were there any disability premiums included in your claim?

Sometimes with Transitional Protection they don't always calculate in time for your first payment because the figures for your previous benefits may not have been sent across in time. When this happens, usually your statement is recalculated within the following week.

Then your UC should include some TP. As I advised, it’s not unusual for them not to calculate this in time for your first payment because they don’t always receive the figures from the previous benefits departments in time.

Put a message onto your journal under the payment section and tell them you believe your payment is correct and that your ESA included the SDP.

1 spare bedroom for social housing is 14% reduction in housing element and 25% for 2 or more bedrooms.

Assuming you were claiming SDP because you’re claiming a qualifying disability benefit. Are you aware that you can claim for an extra bedroom if you need regular overnight care?