Får ikke lønn etter at firma er kjøpt opp

I work for a cleaning company, but last April - March an other company bought them. I have a few problems with old and new company about payments and contact. The 2 of the most serious is that I have 100 % contact from the beginning but from June they paid only 55 % and from August if 2025 I work without contract! We can arrange a meeting sometime at your office and explain the situation.