I recently bought a car radio which arrived damaged . I contacted the seller who said they would give a refund in return for positive feedback . The item was useless so I refused to leave feedback until the issue was resolved and I wasn't happy about being blackmailed into leaving positive feedback . Once the refund was made I left neutral feedback which I thought was fair . Since then the seller has contacted me twice , firstly asking me to change the feedback to positive , then offering to pay me to change my feedback . What do I do because they are clearly trying to manipulate their feedback score