R$5,00 - https://www.mercadopago.com.br/checkout/v1/redirect?pref_id=175805168-4b0dbced-8c16-49d5-945c-f5bfa8961f2d
R$10,00 - https://www.mercadopago.com.br/checkout/v1/redirect?pref_id=175805168-e381e731-9119-4efc-8e19-8fdf836da045
R$20 - https://www.mercadopago.com.br/checkout/v1/redirect?pref_id=175805168-4b7a57af-4dd9-47f3-ac32-b35da3a479d1