Poor customer service

I have deposited money into my satrix account and now when I want to buy the securities, I get a message saying that "Your transaction has already taken place.".

I tried to call the Satrix Call Center but I get a message which says that "they are unable to take calls due to lockdown; I must send the query to "helpme" email address"

I sent this query to this to this email last week on Thursday (11/06). I only got an automated response but no response from the agents