I Can’t Use WhatsApp After My Number Was Banned

My WhatsApp account registered with the phone number +91 7989937*** has been suddenly banned. I am using the standard WhatsApp application, and until the ban I had been using my account in chats and groups as usual. On 31 September I was logged into my account when the application started showing that my number was banned or blocked, without giving me any clear reason. After seeing this message, I contacted WhatsApp support and tried to understand what caused the ban and how I could restore my account. However, the replies I received did not clearly explain the reason for the ban, and I still do not know exactly what led to this situation or what steps I should follow to solve it. I kindly request that my phone number be unbanned so that I can access my WhatsApp account again. If unbanning is not possible, I at least expect a clear and understandable explanation of the reason for the ban and what I need to do to restore my access.