this the first thing i asked , but the owners see it like normal dating company , not adult dating .I would advise checking with your affiliate program what is the name of the actual company sending the payments.
Say, it's not early 2000s any longer and most adult companies have their mainstream fronts and those are good for for banks/EMIs.
It may depend on you personal situation and choices, but it's much easier than it used to be.
Also, instead of EMI (again , not sure of your circumstances) I would get a standard bank, maybe harder to get an account, but more stable afterwards, just a hint!
right, we are in the exactly same field then
Even if you are an affiliate business I would position yourself as a b2b tech company providing tech and other services for subscription based companies.
Put a front site up, talk tech, don;t talk marketing and leads generation, talk optimisations and BI.
Once up, go to the bank and have your pitch ready. In this situation as a solution/service provider you are looking really good.
Once the money will start to flow in, just in case prepare invoices for the received amounts (like you would be invoicing those affiliate programs, despite having self-billing signed with them)... and that's it, as legit as possible.
Everyone happy.