If you get contributory ESA as well as income related ESA, then the amount of contributory ESA you are currently receiving is £140.55 per week, and not £92.05. The Support Group payment is part of the contributory ESA payment. If your savings exceed £16k then any UC you are entitled to after migration will cease. However, your contributory ESA at the rate of £140.55 per week/ £281.10 per fortnight will continue to be paid.