Dear RamiSakr,
We are an ECN broker, which means we pass your trade directly to an LP. However, on very rare occasions such as yours, we become the second party to the trade instead of the LP. We have to do this on occasion to comply with the Terms & Conditions of our Execution Policy.
You had a Pending Order which should have been opened on Friday but was instead opened on Monday. But on Monday the price had already moved away from the stated price. So, we opened the order for you (with us on the other side) at the price you wanted on Friday.