Newbie question. Apologies in advance if this has been covered. I have trawled the forums, but no success!

Fed up with paying so much to travel Club World LHR to YYZ (Toronto)
Have a new business in Toronto and travel here monthly.

Booking from Dublin to Toronto via Heathrow saves zillions but according to the tier pints calculator on the BA site attracts zero tier points.

Is this correct?

Many thanks

Roger