It is most profitable and safest to carry out various financial transactions offline. There are quite a lot of scammers on the Internet, and if you do not want to face them, it is better to avoid risks. I advise you to check the website of the exchanger https://b2.cash/exchange/btc-usd/, clarify the conditions for exchanging currency and buying cryptocurrency, and then come to the office.
Support this user by bitcoin tipping - How to tip bitcoin?
Show bitcoin address
Send bitcoin to this address