I have 2 unrecognised transactions on my statement this month quoting PYD *gengamer.net. The first one is for £1 followed by another a couple of days later for £39.99. These transactions don't ring any bells and Tesco Customer Service can't give me any further information to enable me to contact the retailer. They suggest I claim a Charge back. The options for this don't include 'Not knowing what the transaction is about'. How do I get round this please? They don't appear to have an alternative retail name.