This plan has been expired , Sir.Your code doesn't make sense. The same price for coupon or not.
The users who have claimed it once, can use it again and again till 31/07/20. It was a limited period offer for first 20 customers.No it expires on 31/07/2021. And staff said it was not on the plan I ordered. But in the OP it says 'All RDP plans'.
Furthermore, the thread was made on August 11 so 31/07/20 is not possible.
I have shared a new coupon code NEW50. Hope it helps you.The users who have claimed it once, can use it again and again till 31/07/20. It was a limited period offer for first 20 customers.