Poor quality hair and poor customer service

I bought a wig at The San Hair, Hemingways branch. I wore it a few times and it became stiff, very dry and it tangled so bad. I can't even wear it for a half day. I reported the wig within the 1st two months of buying. From that day I have been experiencing nothing but poor service from The San Hair, they would ignore my messages on WhatsApp, no feedback from them I had to keep send messages after messages from them to respond. They told me that when you report the wig within the 1st 3 months of buying it they replace with a new wig. When I told them that I reported the wig with 4 months they started ignoring my messages again and did not address that. They kept ignoring and told me that they have fixed their wig from their side and they will not be replacing my wig. I am convinced that they do this purpose, they sell good quality wigs to their celebrities and influencers. And the 3 months policy only speaks to certain people. This is not fair because I bought the wig with my money that I work so hard for. I gave them a chance as a business and now they're giving the middle finger. Clearly they don't care about the service they give to a nobody like me, they won't lose anything by losing me as a customer.