RSAWeb don't seem to want extra business .....

Its been almost 3 days since I contacted RSAWeb to upgrade my account, imagine, I want to give them more money and they are chosing to not make contact with me.

1 - I call, agents tell me to call back as they are experiencing load shedding.

2 - I contact them via their own website .... no response

3 - I contact them via Facebook... no acknowledgement

4 - I contact them via Messenger, I get a response that they might not be as responsive as usual and that I should call them, refer to paint #1

What does a client need to do to get acknowledged and assisted????