Those are not “suggested settings” for you to try. I provided the “source” so that you could check them and report if an error exists in the code. 
Edit [1]
The significant thing is that your plan must find an exact match with one of those lines (each line represents a different plan).
I included the source in the case that
- manually entered settings were being overwritten by update / upgrade or
- that you do not have an exact match with carrier published APN, but you say this is not the case.
[1] [LIST] Carriers that work or do not work with /e/OS country-wise