As for now I’m down on selling the call 1000$ and the premium is 1200$ on selling the call ,
Let’s say the market stays at its price at time of expiry do I get 1200$ in my account ?
When you sell an option, the amount is credited to your account. You now have a contractual obligation and at expiration, you'll find out how much of that credit you get to keep. If it's a covered call position, the credit is all yours. At that time, it's the underlying that may or may be the problem.