BongaCash has this. Simply add it to your account and change DNS records. Plus you can add ads of
itmcash on the whitelabel to better convert low quality countries not only on the whitelabel but with other offers cam or dating related. Their whitelabel has nice mobile version but, if you need extra offers for mobile, I suggest
VPSmobile. Making whitelabel there is also so easy.
Accepted payment methods for members of your whitelabel: credit / debit cards, wire, premium SMS, bitcoin...