HJC Build Quality/ Advice

[mickvp]

I would say you have grounds to demand a refund under trading standards law. you are allowed a "reasonable period" of time in which to assess the quality of a product before you have legally "accepted" the goods. just message the seller and say you have rejected the goods as they are not fit for purpose. you havent made any alterations to the helmet, so you should be covered in this regard, you do not need to accept a repair:

http://www.tradingstandards.gov.uk/cgi-bin/glos/con1item.cgi?file=*ADV1024-1011.txt