Hi,
This is in reference to those that have done distance learning degrees. When filling in the education history, you must write {by correspondence} next to the name of the institution so that they know you were not physically at the university. Eg - Leicester University {by correspondence}
If you do this CIC will not require you to submit PCC for that country, however, if you don't they will assume you were physically there and therefore reject your application due to the missing PCC.
The last part mean that CIC may still ask you to submit PCC for the country if they fee it is necessary.
I hope that helps.
All the best
How would I submit a PCC if I haven't visited that country