If you ever plan to visit Istanbul, We have an office in Grandbazaar and we pay cash for your bitcoins. You can cash out your bitcoins tax free. Pm me here or my telegram is @djefess
Guys I dont own the store. If I refer someone, I get paid. That is why I did not write the name of the store. Sorry. You can also meet in anywhere to transact but I wrote Grandbazaar because it is a wellknow public place. Also if you have Turkish bank account, It is possible to wire the money in your bank account But you can easily do it with localbitcoins too.
There is a contradiction in the story, you said "We have an office in Grandbazaar" and then scrapped it "Guys I dont own the store.."
The problem is that making a deal in a public place "especially famous and open to tourists" is used by thieves to steal money as foreigners do not know much about the geography of the place.
Many prefer to conduct transactions in less crowded places such as cafes and others or using some legal stores.
It may be better for you to promote the service using localbitcoin or try to follow legal means if Turkey allows cryptocurrencies.