Days worked for December not paid

Bad service when comes to their employees after they terminated their contract. I have worked from the 15th of December last year after they paid everyone for for December until the 20th of December on the 22nd of December I went to Authorized leave until the 27th of December.On January the terminated contract due to what we had discussion with them that one I don’t have the problem with however today they had to pay me for days I’ve worked for December until I went to leave I did not got my money as I now that each and employee of them has got paid today another thing is that I was having a funeral cover with them I was paying it under staff so after termination of contract my funeral cover were cancelled as if like I’ve had it before no call that I got from them why are they cancelling my funeral cover as it still active. It has came to my attention that they are taking advantage of me maybe thinking I know my rights as staff or either way as customer I’m giving them until today to sort this mess out or else I’m going to escalate this matter further.