VRM2000 | Vetting a claim
From HM Revenue & Customs · VAT Refunds Manual
When you receive a claim, you should check that:
The circumstances of the claim are not such that the matter should be dealt with otherwise than by a refund claim, see VRM3000
The person who submitted the claim is entitled to submit it, see VRM4000
The claim meets the requirements of a valid claim, see VRM5000 and
None of the periods claimed for are out-of-time, see VRM8000
before you spend time verifying it or challenging the arguments underlying it.