Exl or exhell????

Exl service is the worst company ever!!!!!!! I was previously employed at this company,after my stay with them came to an end i am struggling to get my provident fund realised that i had with old mutual as they have not completed it i have been in contact with the HR team and provided them all the documents they requested when i call the office as well as personal numbers no answer its come to a point where they no longer respond to my emails now im stuck unemployed with no money