Wilsey

Hi, I'm a regular online player. I recently won in excess of 20k (23k) off a £2 stake through a free spins game. I have checked the game rules and it says up to 10, 000 x bet can be won. However after the feature my account was credited with £10,002.00. Does any one know why this would have happened? Or do I have legitimate grounds to go back to them and complain/ask for the rest of my money? I decided to post in here first as I'm still waiting for my withdrawal requests to go through before I raise the issue or continue playing until I know my withdrawals are being processed. Any help would be appreciated, note that I had no bonuses or wagering requirements in play. Thank you for reading. Will