World football governing body Fifa have warned the Nigeria Football Federation will refund any cash paid to them for football development which they could not account for, Africanfootball.com reports.
This followed a rash of queries raised by FIFA over the $801,229 development grant they paid the NFF.
The review was done between August 16 and 18, 2016.
The audit by PricewaterhouseCoppers said the money was spent without Supporting Documentation, like receipts, invoices and contracts.
FIFA have therefore warned that if the NFF could not provide adequate supporting documentation for the disbursements, it should make refund on sums unaccounted for.
They also expressed displeasure with the unrestrained practice of cash payments, which they maintained should have been greatly minimised.
Further investigations revealed that as many as 19 issues were raised by the auditors.
The Nigerian sports ministry has already demanded for an independent and full-scale audit of the books of the NFF caused by the litany of queries of how the FIFA grants were disbursed.
Sports minister Solomon Dalung has said he has yet to receive a detailed explanation from the NFF as promised in a communiqué after the federation’s Annual General Assembly in Lagos last week.