Thank you Mr. Morgan,
You saved me the hassle of scrapping my 2 smartphones as well as quite a few Sonoff equipment.
After struggling a bit, but only with your 3 lines, I could configure and see something that even Sonoff company (India and abroad) as well as ITEAD could not assist.
Now my mobile is charging and stops when the battery reaches 20%-80%.
Will be copying that Macrodroid on the 2 smartphones and 1 more Basic switch to witness that everything is working as advised by you.
Thank you!