This sort of action is why we have the workers and social rights and support in the UK and pretty much the rest of the world. General strikes give power to the people. It would be particularly effective as your country is run by corporations who only care about money. Hit them in their wallets and they start to take notice!
April 5th isn't going to turn many heads unfortunately as it's a) a Sunday and b) a holiday (I presume) but it's a step in the right direction.
General Strikes need to be more impactful ranging from a few days every week to an outright walk out until things change. It will be at personal financial cost to those who strike and it's not easy but that is the only way you can bring about change. Money is the only language the people at the top understand. General strikes can topple governments. There are no benevolent people at the top seats of power, that's how they got there!
Power to the People!
I'm channelling my inner Che Guevara here ha ha!