Chargeback Dispute — Apple Pay dispute with merchant

I'm in a difficult situation and trying to figure out my next steps.

Apple Pay dispute with merchant. I've been dealing with this for about 10 weeks now and the situation isn't improving.

The amount being held/disputed is approximately $43,039. I have tried contacting customer support 2 times with no resolution.

Should I hire a lawyer for this or try to handle it myself?

I work in this industry and unfortunately this is very common. The good news is that when people actually push back with legal representation, companies usually settle.