165x13,8 ply van,caravan and trailer tyres and trailer arches ?

I have a couple of commercial rated tyres with 7-8 mm of tread,and a pair of plastic trailer arches with reflecters on the sides,all have been hardly used with no damage,they where bought at the weekend,but i needed 12 inch ones hence the sale,i paid 45 which is what i want back,can sell tyres without arches 01342 714702