Slit in mask

My CPAP mask has developed a slit in the inner part. It has not caused leaks but as it increased in size there is now sort of a banging noise when I breath. That makes sleep difficult. I request a replacement mask several days ago but was told today the insurance approval will take about a week more. Someone suggested I try some tape over the slip but I am concerned about my nose being very close to that. Any opinions or suggestions?