That is great that you are helping some newcomers Berrybean good work! It must be rewarding too.
Great link Hawkeye! I am definitely not in the Received Pronunciation group (and I don't think I know anyone personally who is) I speak what is known as Estuary English which is not held in particularly high regard - think David Beckham or the late Amy Winehouse (which is the only way I am ever going to be compared to those two)
https://en.m.wikipedia.org/wiki/Estuary_English
I have finished work for the day, still have the annoying manflu which I am bearing with ill grace.