Absolutely shocking Poor Quality

I lost 3 tyres already on my BMW X4 with 245/50R18 PIRELLI Runflats !!!! My tyre tread is still about 65%. The tyre just deflate and the wires stick out like hair on the inside of the wall ?????? Is this just a bad batch or what ? This is totally unacceptable quality and way to expensive to replace, I need answers ASAP I don't trust this tyre brand for the safety of my family !!!!!!!!!!!!!