Drayton Manor Park Uk?

well iv paid money for some tickets to drayton manor from my cousin's friend. I checked on the website last night and it said that the person who purchased the tickets must be present and have his bank card for evidence to prevent fraud but that friend will not be coming with us, he bought those tickets but had a change of plan so instead of em goign to waste me and some friends decided to buy them from him. Since his tickets were going to waste i managed to buy them from him for �10 quid each. but now im afraid that what if they don't let me in the park? will they really check? what am i supposed to do? Also what bus goes to drayton manor tamworth from birmingham city centre? thank u so much.