Here's the answer to my question:
Follow this link for info: https://www.familysearch.org/learn/wiki/en/Tunisia:Church_Re...
or just see below:
Obtaining copies of records
The actual church records are the property of the CAtholic Church of Tunisia. To obtain copies, follow these steps:
- send a written request to M. le Chancelier de la Prélature de Tunis, 4 rue d'Alger, 1000 Tunis, TUNISIE
- enclose the cost of 6.10 Euros per record requested
- Be patient. It may take several months to receive a reply.