UC deductions

Hi, hope someone can help put my mind at rest (or else know I need to get this checked).

I've just had my first UC statement having applied because of ESA managed migration. Most of it makes sense, but one small deduction (£73.11) has me confused. It's apparently being deducted, "As you received benefits you were not entitled to" and is related to my ESA. My total entitlement seems correct, and there's also a reduction for my residual contributions-based ESA. What I'd normally do is wait and see if it's repeated next month, or if it's just them getting things sorted where I had a full 2 week ESA payment 4 days after I made my claim, and another on 3rd March (not that I can work out how the £73 would correspond to any particular portion of that) but if I wait that long I'll have missed the window to question/challenge it.

Any advice gratefully received! Thank you

Thank you very much for your wisdom, David. I've sent a message, as you advised. I also asked if the deduction was likely to be repeated. I shall let you know what they say.

Their first attempt to respond:

"The deductions for ESA will not continue throughout your claim. I would advise to call them and ask what payments will be. They are a completely separate department to us."

I've asked them to explain who exactly they're suggesting I call. I'm assuming the department who deal with my ESA, which seems fairly pointless for a question about a UC statement, and deductions being made from UC payments (since they're a different department, if I've understood correctly). Will keep you posted...