Wish complaint: Faulty Goods – refused to refund or exchange

I ordered an airtrack for my daughter’s birthday which arrived on 5th June 2020. This is a large bulky and heavy item so I put it past and did not open the box as her birthday was 2nd July. I ordered quite a bit in advance to ensure it was here on time. The item cost over £160 including the delivery.
When my daughter opened it on her birthday and we tried to inflate the airtrack we could not get it to remain inflated as there was a hole in the air track. The hole was quite obviously at a point which was damaged when the item was folded and packaged.
I wrote to wish and complained on 4th July (29 days after reciept of item). I was asked to provide photos and details of the item and the damage. On the 16th of July I was contacted to tell me that I was outwith the 30 day returns and refund policy and thanked me for my understanding. I was also reminded that in future if I had a complaint to ensure I did so within 30 days. In my email I mentioned that the goods were faulty and should be replaced under the sale of goods act as they were unfit for purpose and I also asked for full contact details of their customer service manager so I could make direct contact as the response I was recieving was completely unacceptable. Both of these points were completely ignored and not answered.
As it stands I have paid £160 for an item I cannot and will not be able to use, I have a little girl who is absolutely gutted that she has not been able to use her birthday present and I am absolutely furious with the way in which this has been dealt with.