Com codigo de referer tem 20?% de desconto em qualquer cartão tambem (mas tenho quase certeza que o cartão virtual é gratuito). Meu link de referer:

https://kastfinance.app.link?%24randomized_bundle_token=1426308012913846109&alias=MWKKR2CJ&channel=app&feature=referral&stage=new+user&type=0&duration=0&source=android&data=eyIkb2dfdGl0bGUiOiJKb2luIEtBU1QgRmluYW5jZSEiLCIkY2Fub25pY2FsX2lkZW50aWZpZXIiOiJyZWZlcnJhbFwvTVdLS1IyQ0oiLCIkb2dfZGVzY3JpcHRpb24iOiJTaWduIHVwIGFuZCBlYXJuIHJld2FyZHMgdXNpbmcgdGhpcyByZWZlcnJhbCBjb2RlISIsIiRwdWJsaWNseV9pbmRleGFibGUiOiJ0cnVlIiwicmVmZXJyYWxfY29kZSI6Ik1XS0tSMkNKIiwiYnJhbmNoX2lvX25hdmlnYXRpb25fZmxvdyI6InJlZmVycmFsX2NvdXBvbl9mbG93IiwiJHVyaV9yZWRpcmVjdF9tb2RlIjoiMSJ9