I have just got off the phone where I talked to a woman and explained my situation. I have been charged by SHUDDER. I had a free trial for 7 days which I had cancelled after 2 days and they have charged me. When I spoke to the tesco lady on the phone she had put a halt to this company from charging me further but told me to fill out a chargeback form. The only chargeback form I have seen is for travel? Can someone please guide me to the correct form?