i personally feel it's quite unreasonable to go back to the shop to bang table. in the first place, they are only selling the product. buyer should know how to use the product. ie. use a blower to blow away any sand or hard particles before using a brush. moreover, the scratches is done by the TS, not by the ppl in the shop. i do not think it's the product defect, but more to user's problem.
it's my 2cents and pls dun flame me. pls.....
it's my 2cents and pls dun flame me. pls.....