There have been many comptroller bid protest decisions involving late proposal submissions. Typically the protestor cites some extenuating circumstances as to why the Government should have but did not receive a timely submission. The Comptroller General (CG) however has never been very understanding of these arguments. , The CG typically finds, citing the Federal Acquisition Regulations (FAR) that it is the offerors responsibility to make sure the Government received the proposal. Its never sufficient or safe to assume that since you mailed, emailed, or FedEx’d a submission, that the correct Government office received it.
Source: PNWC’s Government Contracting Update: When Submitting Proposals, Verify Receipt
New Regulation Formalizes Ombudsman Practice and Identity for IDIQ Contracts
An ‘ombudsman’ is an official charged with addressing and/or investigating the interests of individuals’ or companies’