PTC is not earned by completing actions in this campaign. If you complete all 5 actions, you've essentially entered into the drawing 5 times for 5 chances to win.
at the end of the campaign, a 51 drawings are made. 1 person wins 25,000 PTC. and 50 other people will win a PTC themed T-shirt

Check out the full set of rules at https://www.vuelvelarubia.es/bases-del-sorteo-mapa-de-comercios-pesetacoin/