However, on the 22nd I contacted the seller and he refused to refund my money, he told me that he was not responsible for the loss. I contacted customer service and they're not responsible either.
The hidden line Wu (Offspring) may not come out but in my opinion it can still be interpreted. Offspring 子孫 can represent the customer service because their function is to help people with issues (Offspring typically overcomes Officer). They exist within the Month, giving them some authority. But Offspring is hidden, so Sacrar can pretty much ignore that the customer service really exists for him, unable to help.
Yes, Offspring is not the main Yong Shen, so this is just an additional interpretation.
Here is my take after having a look again at the hexagram:
1 Zi Parent is the book that you originally ordered, aptly located on the first line.
2 This book is broken by the Month and overcome by Day. This one is lost.
3 Hai Parent is the replacement that the Others line offers.
4 Self is Chen Wealth changing to Hai Parent. You spent Chen money but you get Hai book instead.
5 Hai combines with Yin Siblings.
Siblings is seen as the
Ji Shen (it overcomes Wealth in general). This means you (Self) make a loss with the replacement item.
It's best to see no. 4 and 5 together.