I'm not happy to disagree with you.
The Speedy tracking number is not useless.
If you log in to Speedy with these number you can find the international tracking ID next to the Speedy number.
It is the number in brackets, directly over the list with Date, Operation and Settlement.

Ok, to speak or write with Magdalena makes more fun. 
Who would not want contact Magdalena finds its tracking number on the above described way.
It takes a little longer.