GITBOOK-157: chore: update crypto-to-fiat book a call link

Author: MantisClone

docs/request-network-api/crypto-to-fiat-payments.md

@@ -40,7 +40,7 @@ The "Crypto-to-fiat Sandbox" setting for API keys only affects crypto-to-fiat pa
 
 When you're ready to go live with real transactions:
 
-1. [**Book a call**](https://calendly.com/mariana-rn/request-network-demo-docs) to request production access
+1. [**Book a call**](https://calendly.com/mariana-rn/rn-crypto-to-fiat) to request production access
 2. **Discuss your use case** with our team to ensure the best integration approach
 3. **Complete the approval process** - we'll work with you to get everything set up
 4. **Generate Production API keys** once approved