**** service De Aar buildit

I bought a 9kg gas can at buildit awhile back. I haven't refilled that ****** bottle in a while. Now all of a sudden the would take my bottle because the supplier don't take that bottles. So why the **** did they sell me that bottle in the first place, and must I inspect every bottle I buy to make sure it is a ****en certain bottle. And that after I paid for the refill. The staff is pathetic and useless.