I want to cancel my contributor account -- please email me or terminate my account asap

I want to cancel my contributor account -- please email me or terminate my account -- i did not realize how many rights people could gain over my images until further reading-- i dont want anyone printing or reselling or having some sort of advanced account that lets them print my photos on t-shirts and mugs and resell them-- i want to cancel my account asap-- i dont want to sell stock photos

also why is there not a phone number or an email for me to contact someone?????