Ebay sellers say they're worried about potential negative feedback from customers, as buyers with goods caught up in the postal strike begin to launch pre-emptive dispute claims in a bid to avoid being out of pocket.

The Guardian reports that many online auction houses have been left empty handed as the Royal Mail strike continues.

Delays of more than two weeks have sparked concerns from buyers and sellers are now worried about how damaging this could be for their reputations, known as detail seller ratings, which are a crucial indication of how efficient a seller is.

Ebay isn't the only company to struggle with delivery issues, Amazon customers, many of whom use the site to bag early copies of movies, books and game releases are also angry and are threatening to take alternative action.

Credit card customers who pay by cheque are also making their voices heard; they face late payment charges of around £12. The UK Cards Association says people who feel they've been charged unfairly because of the strike should contact their banks to argue their case.