bad employees

MY NAME IS PRUDENCE MAMBA ***) HAD A TENANT FOR 3 MONTHS SIGNED A LEASE(RAND WATER EMPLOYEE..THE CONTRACT EXPIRED ON 30 SEPTEMBER..TOLD THE TENANT THAT I WILL NOT RENEW HER CONTRACT..BUT SHE SAID I DID NOT GIVE HER NOTICE..SO SHE IS NOW STAYING AND WILL NOT PAY RENT..