No response from Zoho support

No response from Zoho support

I have reported this earlier but have not heard back for ages now. I am receiving SPAM emails from my own email address and I am concerned if my clients are also receiving SPAM emails from my email address. No one has contacted me yet. I asked for product tour and was told someone would contact me within 24 hours. It has been nearly a week but I havent heard back!! Please could someone get in touch?