I don't know if the information is real or not, Barcelona this year is working hard to lower the wage bill. The wage bill right now is not out of control, there is simply a financial fair play exceeded due to previous years.
And for example a news story right now, a journalist on a program said the salaries of some players, exorbitant figures.
And Pique posted a twitter with 50% of his salary collected on December 30: €2.3M
If Barcelona does not lower the wage bill can not register new players, so lie obviously is not.