I am not sure about POF as I was CEC and din't want to provide it.Work experience letter details everything just fine,, but pof at the time of submission was just 2 month and a bit old, is that a thing of worry?
Also, it depends on the summary of the period that you had PoF. It shouldn't be a sudden increase in the account or there should be an explanation. Check other forums and if you see there is a problem there, fix it asap