I think an author of this topic is not right, OKPAY is a legal company, I work with them.
All the documents to prove their legality are in open access on their site here https://www.okpay.com/en/company/documents.html
I work with Bitcoin, top-up my OKPAY account via bank transfer.
I had an accident when they asked me to provide additional documents in addition to verification, I was worried but I upload necessary docs and continued to work.
Sorry for my poor english.