I ordered 2 items on 15 July only 1

I ordered 2 items on 15 July only 1 arrived. The watch that i ordered arrived 23 July but because of lack of communication about payment details the carrier took back the watch. Originally i had a problem with my smart LG tv. You sent me a voucher to the value of 500 baht. When i tried to enter the voucher code it said invalid. It was my wifes birthday last Saturday and i wanted to give her the watch on her birthday. I have rung your company so many times wasting my money and time.When i asked for the address of your company the representive said it was company policy not to give the address of Lazada. If i do not get a satisfactory reply from this complaint i will take it to the arbiter of fair trading. Yours faithfully J Sharp