RM5088 | Claims: Claimant or agent enquires about progress of claim
From HM Revenue & Customs · Repayment Claims Manual
If a claimant says that a claim has been made but you cannot find it in the file
check with the RA who registers the claims to see if it is awaiting registration
check permutations of the reference number to see if it has been connected to the wrong file
use TI to check whether there is another claimant in your District with a similar name.
If the claim cannot be traced
see RM4080 about vouchers
send the claimant another claim form.
If the claimant objects to sending duplicate vouchers or claims reimbursement of the cost of these send your file to Central Policy (Tax Administration Advice Team), Stockport with a report.
If you find the original claim after receiving a duplicate
compare the two claims for discrepancies; if you find any, tell an Inspector
cancel both sets of vouchers
get the RSO to mark `Cancelled’ on the claim which is not processed.