Thanks for the reply, Just got an email saying that they have forwarded the new document to the responsible office for their considerationI might be wrong, but I think it won't be an issue, provided you explained your situation in LoE.
You can submit the PCC via raising a CSE and at the same time as stated above, please call the IRCC agent once you have raised a CSE so as to confirm that they have received the additional document provided by you.