1) I created a company some time ago and had a partner. I created ALL content for this business, online & offline, artistic and literary
2) At some point I became an employee of that company
3) During all of this time, all works were produced at my home (on my mums couch), at my expense, with my equipment out of normal working hours, usually between 12am - 4am. If you included this time in the hours I worked then I would be working beyond prescribed time in the EU Working Time Directive (80 hours+) and would then be paid much below the legal minimum wage.
4) I also put my name & a code on documents including the website which had a copyright notice in my own name.
5) i also created a product in my own time, my own expense without any instruction to do so. However it turned out the product was in demand so sold items through the website. But the company is still selling this product.
6) The employee contract does say that the company owns copyright BUT... None of the work I did was asked for, all of it was done in my time at my expense (electricity, internet) with my equipment. ALSO, the company repeatedly broke the contract by not paying wages, refusing to act on my grievances etc.
7) I then had to leave the company as they stopped communicating with me, no payments, nothing for nearly 6 months, i just had to go and get another job

Will I have a case for intellectual copyright? or shall I go Tribunal route instead?