Hey, so there is a promo on Localbitcoins com (you probably know this site as it's one of the most known Bitcoin exchange site)
Well, the guide is below:
1. You need a Firefox browser
2. Install BitManager - mozilla (dot )org/en-US/firefox/addon/bitmanager/
3. Go to Localbitcoins and make a deposit
4. Thats it ! You will receive a 50% bonus!
For example, if you deposit 0.10 BTC you will get 0.15 BTC on localbitcoins, then u can simply withdraw your money (its instant) - you dont need to sell or exchange your coins.
There are absolutely no restrictions on that, it works only once per account, promo started today 28.11.2019 and you can use it until 30.11.2019.