Blocked Account and ******ion

I had transferred some money from my credit card into my wallet on the Vodapay App back in June this year. Shortly after, my account was blocked. I have contacted their helpline on various occasions, in an effort to get my account unblocked so that I can gain access to my money again, but every time I am getting referred to another department which they call their "back-end" department who say they cannot assist me either in unblocking my account. That has been going on for weeks on end, without the issue being resolved. Earlier this week I tried again and again I was referred and told to wait for feedback. The night after logging yet another ticket, I was being sent WhatsApp messages from a woman who stated that she can assist me in unblocking my account, but wants me to compensated her for that. She had all my details available so she is working for Vodapay or has contacts to somebody there. I was shocked and blocked all further phone calls and WhatsApp messages. Not only is Vodapay *****ulently blocking me from accessing my money in the wallet, but also trying to ****** money from me. This is totally unacceptable and highly unprofessionally!