For all custom work, I require a PayPal payment for friends and family. You must confirm the agreement with your PayPal email before you send any payment. If you have a business, our contract confirmation email must originate from "payments@yourbusiness.com". Free email providers are only accepted for individual users.
If PayPal puts a payment on hold for any reason, your order cannot be processed nor your project delivered (e.g software work source code or compiled binaries) until PayPal has released the funds:
https://hexderef.com/images/PP-D-149422468.png If you cannot use PayPal. You can pay in cryptocurrency. I use coinbase.com as my primary cryptocurrency provider. You must pay upfront payment of 1/3 of the project price.