Birkenstock Gizeh Big Buckle Oiled Leather Thong Sandal

I love the two strapped Birks and thought I would try these for a different style. They are comfortable but the thong tore my tore apart on my right foot. I can't tell what rubbing it raw to fix it.

I have heard so many good things about Birkenstock. But unfortunately this style is not for me. The thong separated my toes too far, and the band across my foot rubbed. I had to return them