Picked up a virus on my android which kept sending threatening messages about my phone being in danger! Downloaded AdTranquillity to address it. To be honest, l have no idea how to use it, and I'm being charged $9.99 like every week! I've spent nearly $100 in about a month and a half! Soon it'll just be cheaper to buy a new phone! How can l cancel this app and get a refund? I don't see a phone number on my credit card bill to contact you. Help!