ZohoBooks WhatsApp Integration - 160,000% markup?

ZohoBooks WhatsApp Integration - 160,000% markup?

We have configured the WhatsApp integration on ZohoBooks and utilised 10 credits priced at £16.00. Upon further examination, I found Meta charges $0.015 per conversation, resulting in roughly a 160,000% markup from Zoho. Is this correct, or am I misunderstanding the situation?