Possible *****

I received a call today 22 jan 2021 from Vericred-*** acting on behalf of Medicross Pretoria-East (Constantia Park). They said I owe them whereas I paid in full in the year 2019. It's shameful that Medicross does not check their accounts but instead send Vericred to harass me without facts. Another surprise is they never called in 2020 and just called now. Is it perhaps a ********** act between the two to distort money?