No response from support

I have sent 3 emails and 3 messages via the support channel on the app, with no response as yet. The support channel states that replies are usually under 4-5 hours, but I have not received anything in over 24 hours. I've needed to use the service 3 times in the interim, but am not able to as there is an error message saying that my account is blocked.

I need this sorted out asap to make use of the service, how can I get some feedback here!?

Regards, Claire